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Hagia Sophia

Hagia Sophia (lit. 'Holy Wisdom'; Ancient Greek: Ἁγία Σοφία, romanizedHagía Sophía; Latin: Sancta Sapientia; Turkish: Ayasofya), officially the Hagia Sophia Grand Mosque (Turkish: Ayasofya Camii),[3] is a mosque and major cultural and historical site in Istanbul, Turkey. The mosque was originally built as an Eastern Orthodox church and was used as such from the year 360 until the conquest of Constantinople by the Ottoman Empire in 1453. It served as a mosque until 1935, when it became a museum. In 2020, the site once again became a mosque.

Hagia Sophia
Ἁγία Σοφία (Greek)
Sancta Sapientia (Latin)
Ayasofya (Turkish)
Hagia Sophia was built in 537, with minarets added in the 15th–16th centuries when it became a mosque.[1]
41°00′30″N 28°58′48″E / 41.00833°N 28.98000°E / 41.00833; 28.98000Coordinates: 41°00′30″N 28°58′48″E / 41.00833°N 28.98000°E / 41.00833; 28.98000
LocationFatih, Istanbul, Turkey
DesignerIsidore of Miletus
Anthemius of Tralles
Type
MaterialAshlar, Roman brick
Length82 m (269 ft)
Width73 m (240 ft)
Height55 m (180 ft)
Beginning date360; 1663 years ago (360)
Completion date537; 1486 years ago (537)
Dedicated toThe Holy Wisdom, a reference to the second person of the Trinity, or Jesus Christ[2]
WebsiteOfficial website
Part ofHistoric Areas of Istanbul
CriteriaCultural: i, ii, iii, iv
Reference356
Inscription1985 (9th Session)

The current structure was built by the Byzantine emperor Justinian I as the Christian cathedral of Constantinople for the Byzantine Empire between 532 and 537, and was designed by the Greek geometers Isidore of Miletus and Anthemius of Tralles.[4] It was formally called the Church of the Holy Wisdom (Greek: Ναὸς τῆς Ἁγίας τοῦ Θεοῦ Σοφίας, romanizedNaòs tês Hagías toû Theoû Sophías)[5] and upon completion became the world's largest interior space and among the first to employ a fully pendentive dome. It is considered the epitome of Byzantine architecture[6] and is said to have "changed the history of architecture".[7] The present Justinianic building was the third church of the same name to occupy the site, as the prior one had been destroyed in the Nika riots. As the episcopal see of the ecumenical patriarch of Constantinople, it remained the world's largest cathedral for nearly a thousand years, until Seville Cathedral was completed in 1520. Beginning with subsequent Byzantine architecture, Hagia Sophia became the paradigmatic Orthodox church form, and its architectural style was emulated by Ottoman mosques a thousand years later.[8] It has been described as "holding a unique position in the Christian world"[8] and as an architectural and cultural icon of Byzantine and Eastern Orthodox civilization.[9][10][8]

The religious and spiritual centre of the Eastern Orthodox Church for nearly one thousand years, the church was dedicated to the Holy Wisdom.[11][12][13] It was where the excommunication of Patriarch Michael I Cerularius was officially delivered by Humbert of Silva Candida, the envoy of Pope Leo IX in 1054, an act considered the start of the East–West Schism. In 1204, it was converted during the Fourth Crusade into a Catholic cathedral under the Latin Empire, before being returned to the Eastern Orthodox Church upon the restoration of the Byzantine Empire in 1261. The doge of Venice who led the Fourth Crusade and the 1204 Sack of Constantinople, Enrico Dandolo, was buried in the church.

After the Fall of Constantinople to the Ottoman Empire in 1453,[14] it was converted to a mosque by Mehmed the Conqueror and became the principal mosque of Istanbul until the 1616 construction of the Sultan Ahmed Mosque.[15][16] Upon its conversion, the bells, altar, iconostasis, ambo, and baptistery were removed, while iconography, such as the mosaic depictions of Jesus, Mary, Christian saints and angels were removed or plastered over.[17] Islamic architectural additions included four minarets, a minbar and a mihrab. The Byzantine architecture of the Hagia Sophia served as inspiration for many other religious buildings including the Hagia Sophia in Thessaloniki, Panagia Ekatontapiliani, the Şehzade Mosque, the Süleymaniye Mosque, the Rüstem Pasha Mosque and the Kılıç Ali Pasha Complex. The patriarchate moved to the Church of the Holy Apostles, which became the city's cathedral.

The complex remained a mosque until 1931, when it was closed to the public for four years. It was re-opened in 1935 as a museum under the secular Republic of Turkey, and the building is Turkey's most visited tourist attraction as of 2019.[18] In July 2020, the Council of State annulled the 1934 decision to establish the museum, and the Hagia Sophia was reclassified as a mosque. The 1934 decree was ruled to be unlawful under both Ottoman and Turkish law as Hagia Sophia's waqf, endowed by Sultan Mehmed, had designated the site a mosque; proponents of the decision argued the Hagia Sophia was the personal property of the sultan and that the building symbolizes the Muslim identity of Turkey. The decision to designate Hagia Sophia as a mosque was highly controversial and drew condemnation from the Turkish opposition, UNESCO, the World Council of Churches, the International Association of Byzantine Studies, as well as numerous international leaders.

History

Church of Constantius II

 
Hagia Sophia, Istanbul, Turkey, ca. 1897.

The first church on the site was known as the Magna Ecclesia (Μεγάλη Ἐκκλησία, Megálē Ekklēsíā, 'Great Church')[19][20] because of its size compared to the sizes of the contemporary churches in the city.[11] According to the Chronicon Paschale, the church was consecrated on 15 February 360, during the reign of the emperor Constantius II (r. 337–361) by the Arian bishop Eudoxius of Antioch.[21][22] It was built next to the area where the Great Palace was being developed. According to the 5th-century ecclesiastical historian Socrates of Constantinople, the emperor Constantius had c. 346 "constructed the Great Church alongside that called Irene which because it was too small, the emperor's father [Constantine] had enlarged and beautified".[23][21] A tradition which is not older than the 7th or 8th century reports that the edifice was built by Constantius' father, Constantine the Great (r. 306–337).[21] Hesychius of Miletus wrote that Constantine built Hagia Sophia with a wooden roof and removed 427 (mostly pagan) statues from the site.[24] The 12th-century chronicler Joannes Zonaras reconciles the two opinions, writing that Constantius had repaired the edifice consecrated by Eusebius of Nicomedia, after it had collapsed.[21] Since Eusebius was the bishop of Constantinople from 339 to 341, and Constantine died in 337, it seems that the first church was erected by Constantius.[21]

 
View of the dome interior

The nearby Hagia Irene ("Holy Peace") church was completed earlier and served as cathedral until the Great Church was completed. Besides Hagia Irene, there is no record of major churches in the city-centre before the late 4th century.[22] Rowland Mainstone argued the 4th-century church was not yet known as Hagia Sophia.[25] Though its name as the 'Great Church' implies that it was larger than other Constantinopolitan churches, the only other major churches of the 4th century were the Church of St Mocius, which lay outside the Constantinian walls and was perhaps attached to a cemetery, and the Church of the Holy Apostles.[22]

The church itself is known to have had a timber roof, curtains, columns, and an entrance that faced west.[22] It likely had a narthex and is described as being shaped like a Roman circus.[26] This may mean that it had a U-shaped plan like the basilicas of San Marcellino e Pietro and Sant'Agnese fuori le mura in Rome.[22] However, it may also have been a more conventional three-, four-, or five-aisled basilica, perhaps resembling the original Church of the Holy Sepulchre in Jerusalem or the Church of the Nativity in Bethlehem.[22] The building was likely preceded by an atrium, as in the later churches on the site.[citation needed]

According to Ken Dark and Jan Kostenec, a further remnant of the 4th century basilica may exist in a wall of alternating brick and stone banded masonry immediately to the west of the Justinianic church.[27] The top part of the wall is constructed with bricks stamped with brick-stamps dating from the 5th century, but the lower part is of constructed with bricks typical of the 4th century.[27] This wall was probably part of the propylaeum at the west front of both the Constantinian and Theodosian Great Churches.[27]

The building was accompanied by a baptistery and a skeuophylakion.[22] A hypogeum, perhaps with an martyrium above it, was discovered before 1946, and the remnants of a brick wall with traces of marble revetment were identified in 2004.[27] The hypogeum was a tomb which may have been part of the 4th-century church or may have been from the pre-Constantinian city of Byzantium.[27] The skeuophylakion is said by Palladius to have had a circular floor plan, and since some U-shaped basilicas in Rome were funerary churches with attached circular mausolea (the Mausoleum of Constantina and the Mausoleum of Helena), it is possible it originally had a funerary function, though by 405 its use had changed.[27] A later account credited a woman called Anna with donating the land on which the church was built in return for the right to be buried there.[27]

Excavations on the western side of the site of the first church under the propylaeum wall reveal that the first church was built atop a road about 8 m (26 ft) wide.[27] According to early accounts, the first Hagia Sophia was built on the site of an ancient pagan temple,[28][29][30] although there are no artefacts to confirm this.[31]

The Patriarch of Constantinople John Chrysostom came into a conflict with Empress Aelia Eudoxia, wife of the emperor Arcadius (r. 383–408), and was sent into exile on 20 June 404. During the subsequent riots, this first church was largely burnt down.[21] Palladius noted that the 4th-century skeuophylakion survived the fire.[32] According to Dark and Kostenec, the fire may only have affected the main basilica, leaving the surrounding ancillary buildings intact.[32]

Church of Theodosius II

 
Theodosian capital for a column, one of the few remains of the church of Theodosius II

A second church on the site was ordered by Theodosius II (r. 402–450), who inaugurated it on 10 October 415.[33] The Notitia Urbis Constantinopolitanae, a fifth-century list of monuments, names Hagia Sophia as Magna Ecclesia, 'Great Church', while the former cathedral Hagia Irene is referred to as Ecclesia Antiqua, 'Old Church'. At the time of Socrates of Constantinople around 440, "both churches [were] enclosed by a single wall and served by the same clergy".[23] Thus, the complex would have encompassed a large area including the future site of the Hospital of Samson.[32] If the fire of 404 destroyed only the 4th-century main basilica church, then the 5th century Theodosian basilica could have been built surrounded by a complex constructed primarily during the fourth century.[32]

During the reign of Theodosius II, the emperor's elder sister, the Augusta Pulcheria (r. 414–453) was challenged by the patriarch Nestorius (r. 10 April 428 – 22 June 431).[34][35] The patriarch denied the Augusta access to the sanctuary of the "Great Church", likely on 15 April 428.[35] According to the anonymous Letter to Cosmas, the virgin empress, a promoter of the cult of the Virgin Mary who habitually partook in the Eucharist at the sanctuary of Nestorius's predecessors, claimed right of entry because of her equivalent position to the Theotokos – the Virgin Mary – "having given birth to God".[36][35] Their theological differences were part of the controversy over the title theotokos that resulted in the Council of Ephesus and the stimulation of Monophysitism and Nestorianism, a doctrine, which like Nestorius, rejects the use of the title.[34] Pulcheria along with Pope Celestine I and Patriarch Cyril of Alexandria had Nestorius overthrown, condemned at the ecumenical council, and exiled.[36][34]

The area of the western entrance to the Justinianic Hagia Sophia revealed the western remains of its Theodosian predecessor, as well as some fragments of the Constantinian church.[32] German archaeologist Alfons Maria Schneider began conducting archaeological excavations during the mid-1930s, publishing his final report in 1941.[32] Excavations in the area that had once been the 6th-century atrium of the Justinianic church revealed the monumental western entrance and atrium, along with columns and sculptural fragments from both 4th- and 5th-century churches.[32] Further digging was abandoned for fear of harming the structural integrity of the Justinianic building, but parts of the excavation trenches remain uncovered, laying bare the foundations of the Theodosian building.

The basilica was built by architect Rufinus.[37][38] The church's main entrance, which may have had gilded doors, faced west, and there was an additional entrance to the east.[39] There was a central pulpit and likely an upper gallery, possibly employed as a matroneum (women's section).[39] The exterior was decorated with elaborate carvings of rich Theodosian-era designs, fragments of which have survived, while the floor just inside the portico was embellished with polychrome mosaics.[32] The surviving carved gable end from the centre of the western façade is decorated with a cross-roundel.[32] Fragments of a frieze of reliefs with 12 lambs representing the 12 apostles also remain; unlike Justinian's 6th-century church, the Theodosian Hagia Sophia had both colourful floor mosaics and external decorative sculpture.[32]

At the western end, surviving stone fragments of the structure show there was vaulting, at least at the western end.[32] The Theodosian building had a monumental propylaeum hall with a portico that may account for this vaulting, which was thought by the original excavators in the 1930s to be part of the western entrance of the church itself.[32] The propylaeum opened onto an atrium which lay in front of the basilica church itself. Preceding the propylaeum was a steep monumental staircase following the contours of the ground as it sloped away westwards in the direction of the Strategion, the Basilica, and the harbours of the Golden Horn.[32] This arrangement would have resembled the steps outside the atrium of the Constantinian Old St Peter's Basilica in Rome.[32] Near the staircase, there was a cistern, perhaps to supply a fountain in the atrium or for worshippers to wash with before entering.[32]

The 4th-century skeuophylakion was replaced in the 5th century by the present-day structure, a rotunda constructed of banded masonry in the lower two levels and of plain brick masonry in the third.[32] Originally this rotunda, probably employed as a treasury for liturgical objects, had a second-floor internal gallery accessed by an external spiral staircase and two levels of niches for storage.[32] A further row of windows with marble window frames on the third level remain bricked up.[32] The gallery was supported on monumental consoles with carved acanthus designs, similar to those used on the late 5th-century Column of Leo.[32] A large lintel of the skeuophylakion's western entrance – bricked up during the Ottoman era – was discovered inside the rotunda when it was archaeologically cleared to its foundations in 1979, during which time the brickwork was also repointed.[32] The skeuophylakion was again restored in 2014 by the Vakıflar.[32]

A fire started during the tumult of the Nika Revolt, which had begun nearby in the Hippodrome of Constantinople, and the second Hagia Sophia was burnt to the ground on 13–14 January 532. The court historian Procopius wrote:[40]

And by way of shewing that it was not against the Emperor alone that they [the rioters] had taken up arms, but no less against God himself, unholy wretches that they were, they had the hardihood to fire the Church of the Christians, which the people of Byzantium call "Sophia", an epithet which they have most appropriately invented for God, by which they call His temple; and God permitted them to accomplish this impiety, foreseeing into what an object of beauty this shrine was destined to be transformed. So the whole church at that time lay a charred mass of ruins.

— Procopius, De aedificiis, I.1.21–22

Church of Justinian I (current structure)

 
Originally a church, later a mosque, the 6th-century Hagia Sophia (532–537) by Byzantine emperor Justinian the Great was the largest cathedral in the world for nearly a thousand years, until the completion of the Seville Cathedral (1507) in Spain.
 
Construction of church depicted in codex Manasses Chronicle (14th century)

On 23 February 532, only a few weeks after the destruction of the second basilica, Emperor Justinian I inaugurated the construction of a third and entirely different basilica, larger and more majestic than its predecessors.[41] Justinian appointed two architects, mathematician Anthemius of Tralles and geometer and engineer Isidore of Miletus, to design the building.[42][43]

Construction of the church began in 532 during the short tenure of Phocas as praetorian prefect.[44] Although Phocas had been arrested in 529 as a suspected practitioner of paganism, he replaced John the Cappadocian after the Nika Riots saw the destruction of the Theodosian church.[44] According to John the Lydian, Phocas was responsible for funding the initial construction of the building with 4,000 Roman pounds of gold, but he was dismissed from office in October 532.[45][44] John the Lydian wrote that Phocas had acquired the funds by moral means, but Evagrius Scholasticus later wrote that the money had been obtained unjustly.[46][44]

According to Anthony Kaldellis, both of Hagia Sophia's architects named by Procopius were associated with to the school of the pagan philosopher Ammonius of Alexandria.[44] It is possible that both they and John the Lydian considered Hagia Sophia a great temple for the supreme Neoplatonist deity who manifestated through light and the sun. John the Lydian describes the church as the "temenos of the Great God" (Greek: τὸ τοῦ μεγάλου θεοῦ Τέμενος, romanized: tò toû megálou theoû Témenos).[45][44]

Originally the exterior of the church was covered with marble veneer, as indicated by remaining pieces of marble and surviving attachments for lost panels on the building's western face.[47] The white marble cladding of much of the church, together with gilding of some parts, would have given Hagia Sophia a shimmering appearance quite different from the brick- and plaster-work of the modern period, and would have significantly increased its visibility from the sea.[47] The cathedral's interior surfaces were sheathed with polychrome marbles, green and white with purple porphyry, and gold mosaics. The exterior was clad in stucco that was tinted yellow and red during the 19th-century restorations by the Fossati architects.[48]

The construction is described by Procopius in On Buildings (Greek: Περὶ κτισμάτων, romanizedPeri ktismatōn, Latin: De aedificiis).[40] Columns and other marble elements were imported from throughout the Mediterranean, although the columns were once thought to be spoils from cities such as Rome and Ephesus.[49] Even though they were made specifically for Hagia Sophia, they vary in size.[50] More than ten thousand people were employed during the construction process. This new church was contemporaneously recognized as a major work of architecture. Outside the church was an elaborate array of monuments around the bronze-plated Column of Justinian, topped by an equestrian statue of the emperor which dominated the Augustaeum, the open square outside the church which connected it with the Great Palace complex through the Chalke Gate. At the edge of the Augustaeum was the Milion and the Regia, the first stretch of Constantinople's main thoroughfare, the Mese. Also facing the Augustaeum were the enormous Constantinian thermae, the Baths of Zeuxippus, and the Justinianic civic basilica under which was the vast cistern known as the Basilica Cistern. On the opposite side of Hagia Sophia was the former cathedral, Hagia Irene.

Referring to the destruction of the Theodosian Hagia Sophia and comparing the new church with the old, Procopius lauded the Justinianic building, writing in De aedificiis:[40]

... the Emperor Justinian built not long afterwards a church so finely shaped, that if anyone had enquired of the Christians before the burning if it would be their wish that the church should be destroyed and one like this should take its place, shewing them some sort of model of the building we now see, it seems to me that they would have prayed that they might see their church destroyed forthwith, in order that the building might be converted into its present form.

— Procopius, De aedificiis, I.1.22–23

Upon seeing the finished building, the Emperor reportedly said: "Salomon, I have surpassed thee" (Medieval Greek: Νενίκηκά σε Σολομών).[51]

Justinian and Patriarch Menas inaugurated the new basilica on 27 December 537, 5 years and 10 months after construction started, with much pomp.[52][53][54] Hagia Sophia was the seat of the Patriarchate of Constantinople and a principal setting for Byzantine imperial ceremonies, such as coronations. The basilica offered sanctuary from persecution to criminals, although there was disagreement about whether Justinian had intended for murderers to be eligible for asylum.[55]

 
Basket capitals and verd antique and marble columns. The basket capitals of the building are carved with monograms of the names Justinian (Greek: ᾽Ιουστινιανός, romanizedIoustinianós) and Thedora (Θεοδώρα, Theodṓra) and their imperial titles "βασιλεύς, basileús" and "αὐγούστα, augoústa".

Earthquakes in August 553 and on 14 December 557 caused cracks in the main dome and eastern semi-dome. According to the Chronicle of John Malalas, during a subsequent earthquake on 7 May 558,[56] the eastern semi-dome collapsed, destroying the ambon, altar, and ciborium. The collapse was due mainly to the excessive bearing load and to the enormous shear load of the dome, which was too flat.[52] These caused the deformation of the piers which sustained the dome.[52] Justinian ordered an immediate restoration. He entrusted it to Isidorus the Younger, nephew of Isidore of Miletus, who used lighter materials. The entire vault had to be taken down and rebuilt 20 Byzantine feet (6.25 m or 20.5 ft) higher than before, giving the building its current interior height of 55.6 m (182 ft).[57] Moreover, Isidorus changed the dome type, erecting a ribbed dome with pendentives whose diameter was between 32.7 and 33.5 m.[52] Under Justinian's orders, eight Corinthian columns were disassembled from Baalbek, Lebanon and shipped to Constantinople around 560.[58] This reconstruction, which gave the church its present 6th-century form, was completed in 562. The poet Paul the Silentiary composed an ekphrasis, or long visual poem, for the re-dedication of the basilica presided over by Patriarch Eutychius on 24 December 562. Paul the Silentiary's poem is conventionally known under the Latin title Descriptio Sanctae Sophiae, and he was also author of another ekphrasis on the ambon of the church, the Descripto Ambonis.[59][60]

According to the history of the patriarch Nicephorus I and the chronicler Theophanes the Confessor, various liturgical vessels of the cathedral were melted down on the order of the emperor Heraclius (r. 610–641) after the capture of Alexandria and Roman Egypt by the Sasanian Empire during the Byzantine–Sasanian War of 602–628.[61] Theophanes states that these were made into gold and silver coins, and a tribute was paid to the Avars.[61] The Avars attacked the extramural areas of Constantinople in 623, causing the Byzantines to move the "garment" relic (Greek: ἐσθής, translit. esthḗs) of Mary, mother of Jesus to Hagia Sophia from its usual shrine of the Church of the Theotokos at Blachernae just outside the Theodosian Walls.[62] On 14 May 626, the Scholae Palatinae, an elite body of soldiers, protested in Hagia Sophia against a planned increase in bread prices, after a stoppage of the Cura Annonae rations resulting from the loss of the grain supply from Egypt.[63] The Persians under Shahrbaraz and the Avars together laid the siege of Constantinople in 626; according to the Chronicon Paschale, on 2 August 626, Theodore Syncellus, a deacon and presbyter of Hagia Sophia, was among those who negotiated unsuccessfully with the khagan of the Avars.[64] A homily, attributed by existing manuscripts to Theodore Syncellus and possibly delivered on the anniversary of the event, describes the translation of the Virgin's garment and its ceremonial re-translation to Blachernae by the patriarch Sergius I after the threat had passed.[64][65] Another eyewitness account of the Avar–Persian siege was written by George of Pisidia, a deacon of Hagia Sophia and an administrative official in for the patriarchate from Antioch in Pisidia.[64] Both George and Theodore, likely members of Sergius's literary circle, attribute the defeat of the Avars to the intervention of the Theotokos, a belief that strengthened in following centuries.[64]

 
Polychrome marble revetment on the wall of the gallery

In 726, the emperor Leo the Isaurian issued a series of edicts against the veneration of images, ordering the army to destroy all icons – ushering in the period of Byzantine iconoclasm. At that time, all religious pictures and statues were removed from the Hagia Sophia. Following a brief hiatus during the reign of Empress Irene (797–802), the iconoclasts returned. Emperor Theophilus (r. 829–842) had two-winged bronze doors with his monograms installed at the southern entrance of the church.[66]

The basilica suffered damage, first in a great fire in 859, and again in an earthquake on 8 January 869 that caused the collapse of one of the half-domes.[67] Emperor Basil I ordered repair of the tympanas, arches, and vaults.[68]

In his book De caerimoniis aulae Byzantinae ("Book of Ceremonies"), the emperor Constantine VII (r. 913–959) wrote a detailed account of the ceremonies held in the Hagia Sophia by the emperor and the patriarch.

Early in the 10th century, the pagan ruler of the Kievan Rus' sent emissaries to his neighbors to learn about Judaism, Islam, and Roman and Orthodox Christianity. After visiting Hagia Sophia his emissaries reported back: "We were led into a place where they serve their God, and we did not know where we were, in heaven or on earth."[69]

In the 940s or 950s, probably around 954 or 955, after the Rus'–Byzantine War of 941 and the death of the Grand Prince of Kiev, Igor I (r. 912–945), his widow Olga of Kiev – regent for her infant son Sviatoslav I (r. 945–972) – visited the emperor Constantine VII and was received as queen of the Rus' in Constantinople.[70][71][72] She was probably baptized in Hagia Sophia's baptistery, taking the name of the reigning augusta, Helena Lecapena, and receiving the titles zōstē patrikía and the styles of archontissa and hegemon of the Rus'.[71][70] Her baptism was an important step towards the Christianization of the Kievan Rus', though the emperor's treatment of her visit in De caerimoniis does not mention baptism.[71][70] Olga is deemed a saint and equal-to-the-apostles (Greek: ἰσαπόστολος, translit. isapóstolos) in the Eastern Orthodox Church.[73][74] According to an early 14th-century source, the second church in Kiev, Saint Sophia's, was founded in anno mundi 6460 in the Byzantine calendar, or c. 952.[75] The name of this future cathedral of Kiev probably commemorates Olga's baptism at Hagia Sophia.[75]

After the great earthquake of 25 October 989, which collapsed the western dome arch, Emperor Basil II asked for the Armenian architect Trdat, creator of the Cathedral of Ani, to direct the repairs.[76] He erected again and reinforced the fallen dome arch, and rebuilt the west side of the dome with 15 dome ribs.[77] The extent of the damage required six years of repair and reconstruction; the church was re-opened on 13 May 994. At the end of the reconstruction, the church's decorations were renovated, including the addition of four immense paintings of cherubs; a new depiction of Christ on the dome; a burial cloth of Christ shown on Fridays, and on the apse a new depiction of the Virgin Mary holding Jesus, between the apostles Peter and Paul.[78] On the great side arches were painted the prophets and the teachers of the church.[78]

 
Detail of the verd column

According to the 13th-century Greek historian Niketas Choniates, the emperor John II Comnenus celebrated a revived Roman triumph after his victory over the Danishmendids at the siege of Kastamon in 1133.[79] After proceeding through the streets on foot carrying a cross with a silver quadriga bearing the icon of the Virgin Mary, the emperor participated in a ceremony at the cathedral before entering the imperial palace.[80] In 1168, another triumph was held by the emperor Manuel I Comnenus, again preceding with a gilded silver quadriga bearing the icon of the Virgin from the now-demolished East Gate (or Gate of St Barbara, later the Turkish: Top Kapısı, lit.'Cannon Gate') in the Propontis Wall, to Hagia Sophia for a thanks-giving service, and then to the imperial palace.[81]

In 1181, the daughter of the emperor Manuel I, Maria Comnena, and her husband, the caesar Renier of Montferrat, fled to Hagia Sophia at the culmination of their dispute with the empress Maria of Antioch, regent for her son, the emperor Alexius II Comnenus.[82] Maria Comnena and Renier occupied the cathedral with the support of the patriarch, refusing the imperial administration's demands for a peaceful departure.[82] According to Niketas Choniates, they "transformed the sacred courtyard into a military camp", garrisoned the entrances to the complex with locals and mercenaries, and despite the strong opposition of the patriarch, made the "house of prayer into a den of thieves or a well-fortified and precipitous stronghold, impregnable to assault", while "all the dwellings adjacent to Hagia Sophia and adjoining the Augusteion were demolished by [Maria's] men".[82] A battle ensued in the Augustaion and around the Milion, during which the defenders fought from the "gallery of the Catechumeneia (also called the Makron)" facing the Augusteion, from which they eventually retreated and took up positions in the exonarthex of Hagia Sophia itself.[82] At this point, "the patriarch was anxious lest the enemy troops enter the temple, with unholy feet trample the holy floor, and with hands defiled and dripping with blood still warm plunder the all-holy dedicatory offerings".[82] After a successful sally by Renier and his knights, Maria requested a truce, the imperial assault ceased, and an amnesty was negotiated by the megas doux Andronikos Kontostephanos and the megas hetaireiarches John Doukas.[82] Greek historian Niketas Choniates compared the preservation of the cathedral to the efforts made by the 1st-century emperor Titus to avoid the destruction of the Second Temple during the siege of Jerusalem in the First Jewish–Roman War.[82] Choniates reports that in 1182, a white hawk wearing jesses was seen to fly from the east to Hagia Sophia, flying three times from the "building of the Thōmaitēs" (a basilica erected on the southeastern side of the Augustaion) to the Palace of the Kathisma in the Great Palace, where new emperors were acclaimed.[83] This was supposed to presage the end of the reign of Andronicus I Comnenus (r. 1183–1185).[83]

 
The hexapterygon (six-winged angel) on the north-east pendentive (upper left), whose face was discovered and recovered by the Fossati brothers, uncovered in 2009 (annotations).

Choniates further writes that in 1203, during the Fourth Crusade, the emperors Isaac II Angelus and Alexius IV Angelus stripped Hagia Sophia of all gold ornaments and silver oil-lamps in order to pay off the Crusaders who had ousted Alexius III Angelus and helped Isaac return to the throne.[84] Upon the subsequent Sack of Constantinople in 1204, the church was further ransacked and desecrated by the Crusaders, as described by Choniates, though he did not witness the events in person. According to his account, composed at the court of the rump Empire of Nicaea, Hagia Sophia was stripped of its remaining metal ornaments, its altar was smashed into pieces, and a "woman laden with sins" sang and danced on the synthronon.[85][86][87] He adds that mules and donkeys were brought into the cathedral's sanctuary to carry away the gilded silver plating of the bema, the ambo, and the doors and other furnishings, and that one of them slipped on the marble floor and was accidentally disembowelled, further contaminating the place.[85] According to Ali ibn al-Athir, whose treatment of the Sack of Constantinople was probably dependent on a Christian source, the Crusaders massacred some clerics who had surrendered to them.[88] Much of the interior was damaged and would not be repaired until its return to Orthodox control in 1261.[31] The sack of Hagia Sophia, and Constantinople in general, remained a sore point in Catholic–Eastern Orthodox relations.[89]

During the Latin occupation of Constantinople (1204–1261), the church became a Latin Catholic cathedral. Baldwin I of Constantinople (r. 1204–1205) was crowned emperor on 16 May 1204 in Hagia Sophia in a ceremony which closely followed Byzantine practices. Enrico Dandolo, the Doge of Venice who commanded the sack and invasion of the city by the Latin Crusaders in 1204, is buried inside the church, probably in the upper eastern gallery. In the 19th century, an Italian restoration team placed a cenotaph marker, frequently mistaken as being a medieval artifact, near the probable location and is still visible today. The original tomb was destroyed by the Ottomans during the conversion of the church into a mosque.[90]

Upon the capture of Constantinople in 1261 by the Empire of Nicaea and the emperor Michael VIII Palaeologus, (r. 1261–1282), the church was in a dilapidated state. In 1317, emperor Andronicus II Palaeologus (r. 1282–1328) ordered four new buttresses (Medieval Greek: Πυραμίδας, romanizedPyramídas) to be built in the eastern and northern parts of the church, financing them with the inheritance of his late wife, Irene of Montferrat (d.1314).[17] New cracks developed in the dome after the earthquake of October 1344, and several parts of the building collapsed on 19 May 1346. Repairs by architects Astras and Peralta began in 1354.[67][91]

On 12 December 1452, Isidore of Kiev proclaimed in Hagia Sophia the long-anticipated ecclesiastical union between the western Catholic and eastern Orthodox Churches as decided at the Council of Florence and decreed by the papal bull Laetentur Caeli, though it would be short-lived. The union was unpopular among the Byzantines, who had already expelled the Patriarch of Constantinople, Gregory III, for his pro-union stance. A new patriarch was not installed until after the Ottoman conquest. According to the Greek historian Doukas, the Hagia Sophia was tainted by these Catholic associations, and the anti-union Orthodox faithful avoided the cathedral, considering it to be a haunt of demons and a "Hellenic" temple of Roman paganism.[92] Doukas also notes that after the Laetentur Caeli was proclaimed, the Byzantines dispersed discontentedly to nearby venues where they drank toasts to the Hodegetria icon, which had, according to late Byzantine tradition, interceded to save them in the former sieges of Constantinople by the Avar Khaganate and the Umayyad Caliphate.[93]

According to Nestor Iskander's Tale on the Taking of Tsargrad, the Hagia Sophia was the focus of an alarming omen interpreted as the Holy Spirit abandoning Constantinople on 21 May 1453, in the final days of the Siege of Constantinople.[94] The sky lit up, illuminating the city, and "many people gathered and saw on the Church of the Wisdom, at the top of the window, a large flame of fire issuing forth. It encircled the entire neck of the church for a long time. The flame gathered into one; its flame altered, and there was an indescribable light. At once it took to the sky. ... The light itself has gone up to heaven; the gates of heaven were opened; the light was received; and again they were closed."[94] This phenomenon was perhaps St Elmo's fire induced by gunpowder smoke and unusual weather.[94] The author relates that the fall of the city to "Mohammadenism" was foretold in an omen seen by Constantine the Great – an eagle fighting with a snake – which also signified that "in the end Christianity will overpower Mohammedanism, will receive the Seven Hills, and will be enthroned in it".[94]

The eventual fall of Constantinople had long been predicted in apocalyptic literature.[95] A reference to the destruction of a city founded on seven hills in the Book of Revelation was frequently understood to be about Constantinople, and the Apocalypse of Pseudo-Methodius had predicted an "Ishmaelite" conquest of the Roman Empire.[95] In this text, the Muslim armies reach the Forum Bovis before being turned back by divine intervention; in later apocalyptic texts, the climactic turn takes place at the Column of Theodosius closer to Hagia Sophia; in others, it occurs at the Column of Constantine, which is closer still.[95] Hagia Sophia is mentioned in a hagiography of uncertain date detailing the life of the fictional saint Andrew the Fool.[96] The text is self-attributed to Nicephorus, a priest of Hagia Sophia, and contains a description of the end time in the form of a dialogue, in which the interlocutor, upon being told by the saint that Constantinople will be sunk in a flood and that "the waters as they gush forth will irresistibly deluge her and cover her and surrender her to the terrifying and immense sea of the abyss", says "some people say that the Great Church of God will not be submerged with the city but will be suspended in the air by an invisible power".[96] The reply is given that "When the whole city sinks into the sea, how can the Great Church remain? Who will need her? Do you think God dwells in temples made with hands?"[96] The Column of Constantine, however, is prophesied to endure.[96]

 
Drawing of the colossal bronze imperial statue from atop the Column of Justinian (15th century).

From the time of Procopius in the reign of Justinian, the equestrian imperial statue on the Column of Justinian in the Augustaion beside Hagia Sophia, which gestured towards Asia with right hand, was understood to represent the emperor holding back the threat to the Romans from the Sasanian Empire in the Roman–Persian Wars, while the orb or globus cruciger held in the statue's left was an expression of the global power of the Roman emperor.[97] Subsequently, in the Arab–Byzantine wars, the threat held back by the statue became the Umayyad Caliphate, and later, the statue was thought to be fending off the advance of the Turks.[97] The identity of the emperor was often confused with that of other famous saint-emperors like Theodosius the Great and Heraclius.[97] The orb was frequently referred to as an apple in foreigners' accounts of the city, and it was interpreted in Greek folklore as a symbol of the Turks' mythological homeland in Central Asia, the "Lone Apple Tree".[97] The orb fell to the ground in 1316 and was replaced by 1325, but while it was still in place around 1412, by the time Johann Schiltberger saw the statue in 1427, the "empire-apple" (German: Reichsapfel) had fallen to the earth.[97] An attempt to raise it again in 1435 failed, and this amplified the prophecies of the city's fall.[97] For the Turks, the "red apple" (Turkish: kızıl elma) came to symbolize Constantinople itself and subsequently the military supremacy of the Islamic caliphate over the Christian empire.[97] In Niccolò Barbaro's account of the fall of the city in 1453, the Justinianic monument was interpreted in the last days of the siege as representing the city's founder Constantine the Great, indicating "this is the way my conqueror will come".[94]

According to Laonicus Chalcocondyles, Hagia Sophia was a refuge for the population during the city's capture.[98] Despite the ill-repute and empty state of Hagia Sophia after December 1452, Doukas writes that after the Theodosian Walls were breached, the Byzantines took refuge there as the Turks advanced through the city: "All the women and men, monks, and nuns ran to the Great Church. They, both men and women, were holding in their arms their infants. What a spectacle! That street was crowded, full of human beings."[98] He attributes their change of heart to a prophecy.[98]

What was the reason that compelled all to flee to the Great Church? They had been listening, for many years, to some pseudo-soothsayers, who had declared that the city was destined to be handed over to the Turks, who would enter in large numbers and would massacre the Romans as far as the Column of Constantine the Great. After this an angel would descend, holding his sword. He would hand over the kingdom, together with the sword, to some insignificant, poor, and humble man who would happen to be standing by the Column. He would say to him: "Take this sword and avenge the Lord's people." Then the Turks would be turned back, would be massacred by the pursuing Romans, and would be ejected from the city and from all places in the west and the east and would be driven as far as the borders of Persia, to a place called the Lone Tree …. That was the cause for the flight into the Great Church. In one hour that famous and enormous church was filled with men and women. An innumerable crowd was everywhere: upstairs, downstairs, in the courtyards, and in every conceivable place. They closed the gates and stood there, hoping for salvation.

— Doukas, XXXIX.18

In accordance with the traditional custom of the time, Sultan Mehmed II allowed his troops and his entourage three full days of unbridled pillage and looting in the city shortly after it was captured. This period saw the destruction of many Orthodox churches;[99] Hagia Sophia itself was looted as the invaders believed it to contain the greatest treasures of the city.[100] Shortly after the defence of the Walls of Constantinople collapsed and the victorious Ottoman troops entered the city, the pillagers and looters made their way to the Hagia Sophia and battered down its doors before storming inside.[101] Once the three days passed, Mehmed was to claim the city's remaining contents for himself.[102][103] However, by the end of the first day, he proclaimed that the looting should cease as he felt profound sadness when he toured the looted and enslaved city.[104][102][105]

Throughout the siege of Constantinople, the trapped people of the city participated in the Divine Liturgy and the Prayer of the Hours at the Hagia Sophia, and the church was a safe-haven and a refuge for many of those who were unable to contribute to the city's defence, including women, children, elderly, the sick and the wounded.[106][107][105] As they were trapped in the church, the many congregants and other refugees inside became spoils-of-war to be divided amongst the triumphant invaders. The building was desecrated and looted, and those who sought shelter within the church were enslaved.[100] While most of the elderly and the infirm, injured, and sick were killed, the remainder (mainly teenage males and young boys) were chained and sold into slavery.[101][105]

Mosque (1453–1935)

 
The mihrab located in the apse where the altar used to stand, pointing towards Mecca. The two giant candlesticks flanking the mihrab were brought in from Ottoman Hungary by Sultan Suleiman the Magnificent.

Constantinople fell to the attacking Ottoman forces on 29 May 1453. Sultan Mehmed II entered the city and performed the Friday prayer and khutbah (sermon) in Hagia Sophia, and this action marked the official conversion of Hagia Sophia into a mosque.[108] The church's priests and religious personnel continued to perform Christian rites, prayers, and ceremonies until they were compelled to stop by the invaders.[101] When Mehmed and his entourage entered the church, he ordered that it be converted into a mosque immediately. One of the ʿulamāʾ (Islamic scholars) present climbed onto the church's ambo and recited the shahada ("There is no god but Allah, and Muhammad is his messenger"), thus marking the beginning of the conversion of the church into a mosque.[17][109] Mehmed is reported to have taken a sword to a soldier who tried to pry up one of the paving slabs of the Proconnesian marble floor.[110]

As described by Western visitors before 1453, such as the Córdoban nobleman Pero Tafur[111] and the Florentine geographer Cristoforo Buondelmonti,[112] the church was in a dilapidated state, with several of its doors fallen from their hinges. Mehmed II ordered a renovation of the building. Mehmed attended the first Friday prayer in the mosque on 1 June 1453.[113] Aya Sofya became the first imperial mosque of Istanbul.[114] Most of the existing houses in the city and the area of the future Topkapı Palace were endowed to the corresponding waqf.[17] From 1478, 2,360 shops, 1,300 houses, 4 caravanserais, 30 boza shops, and 23 shops of sheep heads and trotters gave their income to the foundation.[115] Through the imperial charters of 1520 (AH 926) and 1547 (AH 954), shops and parts of the Grand Bazaar and other markets were added to the foundation.[17]

Before 1481, a small minaret was erected on the southwest corner of the building, above the stair tower.[17] Mehmed's successor Bayezid II (r. 1481–1512) later built another minaret at the northeast corner.[17] One of the minarets collapsed after the earthquake of 1509,[17] and around the middle of the 16th century they were both replaced by two diagonally opposite minarets built at the east and west corners of the edifice.[17] In 1498, Bernardo Bonsignori was the last Western visitor to Hagia Sophia to report seeing the ancient Justinianic floor; shortly afterwards the floor was covered over with carpet and not seen again until the 19th century.[110]

In the 16th century, Sultan Suleiman the Magnificent (r. 1520–1566) brought two colossal candlesticks from his conquest of the Kingdom of Hungary and placed them on either side of the mihrab. During Suleiman's reign, the mosaics above the narthex and imperial gates depicting Jesus, Mary, and various Byzantine emperors were covered by whitewash and plaster, which were removed in 1930 under the Turkish Republic.[116][better source needed]

 
Fountain (Şadırvan) for ritual ablutions

During the reign of Selim II (r. 1566–1574), the building started showing signs of fatigue and was extensively strengthened with the addition of structural supports to its exterior by Ottoman architect Mimar Sinan, who was also an earthquake engineer.[117] In addition to strengthening the historic Byzantine structure, Sinan built two additional large minarets at the western end of the building, the original sultan's lodge and the türbe (mausoleum) of Selim II to the southeast of the building in 1576–1577 (AH 984). In order to do that, parts of the Patriarchate at the south corner of the building were pulled down the previous year.[17] Moreover, the golden crescent was mounted on the top of the dome,[17] and a respect zone 35 arşın (about 24 m) wide was imposed around the building, leading to the demolition of all houses within the perimeter.[17] The türbe became the location of the tombs of 43 Ottoman princes.[17] Murad III (r. 1574–1595) imported two large alabaster Hellenistic urns from Pergamon (Bergama) and placed them on two sides of the nave.[17]

In 1594 (AH 1004) Mimar (court architect) Davud Ağa built the türbe of Murad III, where the Sultan and his valide, Safiye Sultan were buried.[17] The octagonal mausoleum of their son Mehmed III (r. 1595–1603) and his valide was built next to it in 1608 (AH 1017) by royal architect Dalgiç Mehmet Aĝa.[118] His son Mustafa I (r. 1617–1618, 1622–1623) converted the baptistery into his türbe.[118]

In 1717, under the reign of Sultan Ahmed III (r. 1703–1730), the crumbling plaster of the interior was renovated, contributing indirectly to the preservation of many mosaics, which otherwise would have been destroyed by mosque workers.[118] In fact, it was usual for the mosaic's tesserae—believed to be talismans—to be sold to visitors.[118] Sultan Mahmud I ordered the restoration of the building in 1739 and added a medrese (a Koranic school, subsequently the library of the museum), an imaret (soup kitchen for distribution to the poor) and a library, and in 1740 he added a Şadirvan (fountain for ritual ablutions), thus transforming it into a külliye, or social complex. At the same time, a new sultan's lodge and a new mihrab were built inside.[citation needed]

Renovation of 1847–1849

 
Calligraphy with the name of the 4th Rashidun caliph, Ali bin Abi Talib, one of eight medallions added in the 19th century

The 19th-century restoration of the Hagia Sophia was ordered by Sultan Abdulmejid I (r. 1823–1861) and completed between 1847 and 1849 by eight hundred workers under the supervision of the Swiss-Italian architect brothers Gaspare and Giuseppe Fossati. The brothers consolidated the dome with a restraining iron chain and strengthened the vaults, straightened the columns, and revised the decoration of the exterior and the interior of the building.[119] The mosaics in the upper gallery were exposed and cleaned, although many were recovered "for protection against further damage".[120]

Eight new gigantic circular-framed discs or medallions were hung from the cornice, on each of the four piers and at either side of the apse and the west doors. These were designed by the calligrapher Kazasker Mustafa Izzet Efendi (1801–1877) and painted with the names of Allah, Muhammad, the Rashidun (the first four caliphs: Abu Bakr, Umar, Uthman and Ali), and the two grandsons of Muhammad: Hasan and Husayn, the sons of Ali. The old chandeliers were replaced by new pendant ones.[citation needed]

In 1850, the architects Fossati built a new maqsura or caliphal loge in Neo-Byzantine columns and an Ottoman–Rococo style marble grille connecting to the royal pavilion behind the mosque.[119] The new maqsura was built at the extreme east end of the northern aisle, next to the north-eastern pier. The existing maqsura in the apse, near the mihrab, was demolished.[119] A new entrance was constructed for the sultan: the Hünkar Mahfili.[119] The Fossati brothers also renovated the minbar and mihrab.

Outside the main building, the minarets were repaired and altered so that they were of equal height.[120] A clock building, the Muvakkithane, was built by the Fossatis for use by the muwaqqit (the mosque timekeeper), and a new madrasa (Islamic school) was constructed. The Kasr-ı Hümayun was also built under their direction.[119] When the restoration was finished, the mosque was re-opened with a ceremony on 13 July 1849.[121] An edition of lithographs from drawings made during the Fossatis' work on Hagia Sophia was published in London in 1852, entitled: Aya Sophia of Constantinople as Recently Restored by Order of H.M. The Sultan Abdulmedjid.[119]

Occupation of Istanbul (1918-1923)

In the aftermath of the defeat of the Ottoman Empire in World War I, Constantinople was occupied by British, French, Italian, and Greek forces. On 19 January 1919, the Greek Orthodox Christian military priest Eleftherios Noufrakis performed an unauthorized Divine Liturgy in the Hagia Sophia, the only such instance since the 1453 fall of Constantinople.[122] The anti-occupation Sultanahmet demonstrations were held next to Hagia Sophia from March to May 1919. In Greece, the 500 drachma banknotes issued in 1923 featured Hagia Sophia.[123]

Museum (1935–2020)

 
Hagia Sophia in 1937
 
MG08 on the minaret of the Ayasofya Museum in Istanbul, Turkey (1941)

In 1935, the first Turkish President and founder of the Republic of Turkey, Mustafa Kemal Atatürk, transformed the building into a museum. During the Second World War, the minarets of the museum housed MG 08 machine guns.[124] The carpet and the layer of mortar underneath were removed and marble floor decorations such as the omphalion appeared for the first time since the Fossatis' restoration,[125] when the white plaster covering many of the mosaics had been removed. Due to neglect, the condition of the structure continued to deteriorate, prompting the World Monuments Fund (WMF) to include the Hagia Sophia in their 1996, and 1998 Watch Lists. During this time period, the building's copper roof had cracked, causing water to leak down over the fragile frescoes and mosaics. Moisture entered from below as well. Rising ground water increased the level of humidity within the monument, creating an unstable environment for stone and paint. The WMF secured a series of grants from 1997 to 2002 for the restoration of the dome. The first stage of work involved the structural stabilization and repair of the cracked roof, which was undertaken with the participation of the Turkish Ministry of Culture and Tourism. The second phase, the preservation of the dome's interior, afforded the opportunity to employ and train young Turkish conservators in the care of mosaics. By 2006, the WMF project was complete, though many areas of Hagia Sophia continue to require significant stability improvement, restoration, and conservation.[126]

In 2014, Hagia Sophia was the second most visited museum in Turkey, attracting almost 3.3 million visitors annually.[127]

 
The interior undergoing restoration in 2007
 
Gli, Hagia Sophia's famous cat in 2014.

While use of the complex as a place of worship (mosque or church) was strictly prohibited,[128] in 1991 the Turkish government allowed the allocation of a pavilion in the museum complex (Ayasofya Müzesi Hünkar Kasrı) for use as a prayer room, and, since 2013, two of the museum's minarets had been used for voicing the call to prayer (the ezan) regularly.[129][130]

From the early 2010s, several campaigns and government high officials, notably Turkey's deputy prime minister Bülent Arınç in November 2013, demanded the Hagia Sophia be converted back into a mosque.[131][132][133] In 2015, Pope Francis publicly acknowledged the Armenian genocide, which is officially denied in Turkey. In response, the mufti of Ankara, Mefail Hızlı, said he believed the Pope's remarks would accelerate the conversion of Hagia Sophia into a mosque.[134]

On 1 July 2016, Muslim prayers were held again in the Hagia Sophia for the first time in 85 years.[135] That November, a Turkish NGO, the Association for the Protection of Historic Monuments and the Environment, filed a lawsuit for converting the museum into a mosque.[136] The court decided it should stay as a 'monument museum'.[137][better source needed] In October 2016, Turkey's Directorate of Religious Affairs (Diyanet) appointed, for the first time in 81 years, a designated imam, Önder Soy, to the Hagia Sophia mosque (Ayasofya Camii Hünkar Kasrı), located at the Hünkar Kasrı, a pavilion for the sultans' private ablutions. Since then, the adhan has been regularly called out from the Hagia Sophia's all four minarets five times a day.[129][130][138]

On 13 May 2017, a large group of people, organized by the Anatolia Youth Association (AGD), gathered in front of Hagia Sophia and prayed the morning prayer with a call for the re-conversion of the museum into a mosque.[139] On 21 June 2017 the Directorate of Religious Affairs (Diyanet) organized a special programme, broadcast live by state-run television TRT, which included the recitation of the Quran and prayers in Hagia Sophia, to mark the Laylat al-Qadr.[140]

 
A small Muslim prayer room (mescit) in the Hagia Sophia complex, 2020

Reversion to mosque (2018–present)

 
Hagia Sophia (03/2023)

Since 2018, Turkish president Recep Tayyip Erdoğan had spoken of reverting the status of the Hagia Sophia back to a mosque, a move seen to be very popularly accepted by the religious populace whom Erdoğan was attempting to persuade.[141] On 31 March 2018 Erdoğan recited the first verse of the Quran in the Hagia Sophia, dedicating the prayer to the "souls of all who left us this work as inheritance, especially Istanbul's conqueror," strengthening the political movement to make the Hagia Sophia a mosque once again, which would reverse Atatürk's measure of turning the Hagia Sophia into a secular museum.[142] In March 2019 Erdoğan said that he would change the status of Hagia Sophia from a museum to a mosque,[143] adding that it had been a "very big mistake" to turn it into a museum.[144] As a UNESCO World Heritage site, this change would require approval from UNESCO's World Heritage Committee.[145] In late 2019 Erdoğan's office took over the administration and upkeep of the nearby Topkapı Palace Museum, transferring responsibility for the site from the Ministry of Culture and Tourism by presidential decree.[146][147][148]

In 2020, Turkey's government celebrated the 567th anniversary of the Conquest of Constantinople with an Islamic prayer in Hagia Sophia. Erdoğan said during a televised broadcast "Al-Fath surah will be recited and prayers will be done at Hagia Sophia as part of conquest festival".[149] In May, during the anniversary events, passages from the Quran were read in the Hagia Sophia. Greece condemned this action, while Turkey in response accused Greece of making "futile and ineffective statements".[150] In June, the head of Turkey's Directorate of Religious Affairs (Diyanet) said that "we would be very happy to open Hagia Sophia for worship" and that if it happened "we will provide our religious services as we do in all our mosques”.[136] On 25 June, John Haldon, president of the International Association of Byzantine Studies, wrote an open letter to Erdoğan asking that he "consider the value of keeping the Aya Sofya as a museum".[151]

On 10 July 2020, the decision of the Council of Ministers to transform the Hagia Sophia into a museum was annulled by the Council of State, decreeing that Hagia Sophia cannot be used "for any other purpose" than being a mosque and that the Hagia Sophia was property of the Fatih Sultan Mehmet Han Foundation. The council reasoned Ottoman Sultan Mehmet II, who conquered Istanbul, deemed the property to be used by the public as a mosque without any fees and was not within the jurisdiction of the Parliament or a ministry council.[152][153] Despite secular and global criticism, Erdoğan signed a decree annulling the Hagia Sophia's museum status, reverting it to a mosque.[154][155] The call to prayer was broadcast from the minarets shortly after the announcement of the change and rebroadcast by major Turkish news networks.[155] The Hagia Sophia Museum's social media channels were taken down the same day, with Erdoğan announcing at a press conference that prayers themselves would be held there from 24 July.[155] A presidential spokesperson said it would become a working mosque, open to anyone similar to the Parisian churches Sacré-Cœur and Notre-Dame. The spokesperson also said that the change would not affect the status of the Hagia Sophia as a UNESCO World Heritage site, and that "Christian icons" within it would continue to be protected.[141] Earlier the same day, before the final decision, the Turkish Finance and Treasury Minister Berat Albayrak and the Justice Minister Abdulhamit Gül expressed their expectations of opening the Hagia Sophia to worship for Muslims.[156][157] Mustafa Şentop, Speaker of Turkey's Grand National Assembly, said "a longing in the heart of our nation has ended".[156] A presidential spokesperson claimed that all political parties in Turkey supported Erdoğan's decision;[158] however, the Peoples' Democratic Party had previously released a statement denouncing the decision, saying "decisions on human heritage cannot be made on the basis of political games played by the government".[159] The mayor of Istanbul, Ekrem İmamoğlu, said that he supports the conversion "as long as it benefits Turkey", adding that he felt that Hagia Sophia has been a mosque since 1453.[160] Ali Babacan attacked the policy of his former ally Erdoğan, saying the Hagia Sophia issue "has come to the agenda now only to cover up other problems".[161] Orhan Pamuk, Turkish novelist and Nobel laureate, publicly denounced the move, saying "Kemal Atatürk changed... Hagia Sophia from a mosque to a museum, honouring all previous Greek Orthodox and Latin Catholic history, making it as a sign of Turkish modern secularism".[155][162]

 
Hagia Sophia during the Allied occupation of Constantinople: the RHS Georgios Averof enters the Golden Horn in 1919 (Lycourgos Kogevinas [el], National Historical Museum, Athens)

On 17 July, Erdoğan announced that the first prayers in the Hagia Sophia would be open to between 1,000 and 1,500 worshippers. He said that Turkey had sovereign power over Hagia Sophia and was thus not subject to international restrictions.[163]

While the Hagia Sophia has now been rehallowed as a mosque, the place remains open for visitors outside of prayer times. Entrance is free of charge.[164]

On 22 July, a turquoise-coloured carpet was laid to prepare the mosque for worshippers; Ali Erbaş, head of the Diyanet, attended its laying.[161] The omphalion was left exposed. Due to the COVID-19 pandemic, Erbaş said Hagia Sophia would accommodate up to 1,000 worshippers at a time and asked that they bring "masks, a prayer rug, patience and understanding".[161] The mosque opened for Friday prayers on 24 July, the 97th anniversary of the signature of the Treaty of Lausanne, which reversed many of the territorial losses Turkey incurred after World War I's Treaty of Sèvres, including ending the Allies' occupation of Constantinople, following the victory of the Republic in the Turkish War of Independence.[161] The mosaics of the Virgin and Child in the apse were covered by white drapes.[162] Erbaş, holding a sword, proclaimed during his sermon, "Sultan Mehmet the Conqueror dedicated this magnificent construction to believers to remain a mosque until the Day of Resurrection".[162] Erdoğan and some government ministers attended the midday prayers as many worshippers prayed outside; at one point the security cordon was breached and dozens of people broke through police lines.[162] Turkey invited foreign leaders and officials, including Pope Francis, for the prayers.[165] It is the fourth Byzantine church converted from museum to a mosque during Erdoğan's rule.[166]

In April 2022, the Hagia Sophia held its first Ramadan tarawih prayer in 88 years.[167]

International reaction

Days before the final decision on the conversion was made, Ecumenical Patriarch Bartholomew I of Constantinople stated in a sermon that "the conversion of Hagia Sophia into a mosque would disappoint millions of Christians around the world", he also said that Hagia Sophia, which was "a vital center where East is embraced with the West", would "fracture these two worlds" in the event of conversion.[168][169] The proposed conversion was decried by other Orthodox Christian leaders, the Russian Orthodox Church's Patriarch Kirill of Moscow stating that "a threat to Hagia Sophia [wa]s a threat to all of Christian civilization".[170][171]

Following the Turkish government's decision, UNESCO announced it "deeply regret[ted]" the conversion "made without prior discussion", and asked Turkey to "open a dialogue without delay", stating that the lack of negotiation was "regrettable".[172][155] UNESCO further announced that the "state of conservation" of Hagia Sophia would be "examined" at the next session of the World Heritage Committee, urging Turkey "to initiate dialogue without delay, in order to prevent any detrimental effect on the universal value of this exceptional heritage".[172] Ernesto Ottone, UNESCO's Assistant Director-General for Culture said "It is important to avoid any implementing measure, without prior discussion with UNESCO, that would affect physical access to the site, the structure of the buildings, the site's moveable property, or the site's management".[172] UNESCO's statement of 10 July said "these concerns were shared with the Republic of Turkey in several letters, and again yesterday evening with the representative of the Turkish Delegation" without a response.[172]

The World Council of Churches, which claims to represent 500 million Christians of 350 denominations, condemned the decision to convert the building into a mosque, saying that would "inevitably create uncertainties, suspicions and mistrust"; the World Council of Churches urged Turkey's president Erdoğan "to reconsider and reverse" his decision "in the interests of promoting mutual understanding, respect, dialogue and cooperation, and avoiding cultivating old animosities and divisions".[173][174][175] At the recitation of the Sunday Angelus prayer at St Peter's Square on 12 July Pope Francis said, "My thoughts go to Istanbul. I think of Santa Sophia and I am very pained" (Italian: Penso a Santa Sofia, a Istanbul, e sono molto addolorato).[note 1][177][178] The International Association of Byzantine Studies announced that its 21st International Congress, due to be held in Istanbul in 2021, will no longer be held there and is postponed to 2022.[151]

 
Abdulmejid II (r. 1922–24), the last Ottoman caliph, passing Hagia Sophia on the way to his coronation. The Abolition of the Caliphate was one of Atatürk's Reforms.

Josep Borrell, the European Union's High Representative for Foreign Affairs and Vice-President of the European Commission, released a statement calling the decisions by the Council of State and Erdoğan "regrettable" and pointing out that "as a founding member of the Alliance of Civilisations, Turkey has committed to the promotion of inter-religious and inter-cultural dialogue and to fostering of tolerance and co-existence."[179] According to Borrell, the European Union member states' twenty-seven foreign ministers "condemned the Turkish decision to convert such an emblematic monument as the Hagia Sophia" at meeting on 13 July, saying it "will inevitably fuel the mistrust, promote renewed division between religious communities and undermine our efforts at dialog and cooperation" and that "there was a broad support to call on the Turkish authorities to urgently reconsider and reverse this decision".[180][181] Greece denounced the conversion and considered it a breach of the UNESCO World Heritage titling.[141] Greek culture minister Lina Mendoni called it an "open provocation to the civilised world" which "absolutely confirms that there is no independent justice" in Erdoğan's Turkey, and that his Turkish nationalism "takes his country back six centuries".[182] Greece and Cyprus called for EU sanctions on Turkey.[183] Morgan Ortagus, the spokesperson for the United States Department of State, noted: "We are disappointed by the decision by the government of Turkey to change the status of the Hagia Sophia."[182] Jean-Yves Le Drian, foreign minister of France, said his country "deplores" the move, saying "these decisions cast doubt on one of the most symbolic acts of modern and secular Turkey".[175] Vladimir Dzhabarov, deputy head of the foreign affairs committee of the Russian Federation Council, said that it "will not do anything for the Muslim world. It does not bring nations together, but on the contrary brings them into collision" and calling the move a "mistake".[182] The former deputy prime minister of Italy, Matteo Salvini, held a demonstration in protest outside the Turkish consulate in Milan, calling for all plans for accession of Turkey to the European Union to be terminated "once and for all".[184] In East Jerusalem, a protest was held outside the Turkish consulate on 13 July, with the burning of a Turkish flag and the display of the Greek flag and flag of the Greek Orthodox Church.[185] In a statement the Turkish foreign ministry condemned the burning of the flag, saying "nobody can disrespect or encroach our glorious flag".[186]

Ersin Tatar, prime minister of the Turkish Republic of Northern Cyprus, which is recognized only by Turkey, welcomed the decision, calling it "sound" and "pleasing".[187][182] He further criticized the government of Cyprus, claiming that "the Greek Cypriot administration, who burned down our mosques, should not have a say in this".[187] Through a spokesman the Foreign Ministry of Iran welcomed the change, saying the decision was an "issue that should be considered as part of Turkey's national sovereignty" and "Turkey's internal affair".[188] Sergei Vershinin, deputy foreign minister of Russia, said that the matter was of one of "internal affairs, in which, of course, neither we nor others should interfere."[189][190] The Arab Maghreb Union was supportive.[191] Ekrema Sabri, imam of the al-Aqsa Mosque, and Ahmed bin Hamad al-Khalili, grand mufti of Oman, both congratulated Turkey on the move.[191] The Muslim Brotherhood was also in favour of the news.[191] A spokesman for the Palestinian Islamist movement Hamas called the verdict "a proud moment for all Muslims".[192] Pakistani politician Chaudhry Pervaiz Elahi of the Pakistan Muslim League (Q) welcomed the ruling, claiming it was "not only in accordance with the wishes of the people of Turkey but the entire Muslim world".[193] The Muslim Judicial Council group in South Africa praised the move, calling it "a historic turning point".[194] In Nouakchott, capital of Mauritania, there were prayers and celebrations topped by the sacrifice of a camel.[195] On the other hand, Shawki Allam, grand mufti of Egypt, ruled that conversion of the Hagia Sophia to a mosque is "impermissible".[196]

When President Erdoğan announced that the first Muslim prayers would be held inside the building on 24 July, he added that "like all our mosques, the doors of Hagia Sophia will be wide open to locals and foreigners, Muslims and non-Muslims." Presidential spokesman İbrahim Kalın said that the icons and mosaics of the building would be preserved, and that "in regards to the arguments of secularism, religious tolerance and coexistence, there are more than four hundred churches and synagogues open in Turkey today."[197] Ömer Çelik, spokesman for the ruling Justice and Development Party (AKP), announced on 13 July that entry to Hagia Sophia would be free of charge and open to all visitors outside prayer times, during which Christian imagery in the building's mosaics would be covered by curtains or lasers.[184] In response to the criticisms of Pope Francis, Çelik said that the papacy was responsible for the greatest disrespect done to the site, during the 13th-century Latin Catholic Fourth Crusade's sack of Constantinople and the Latin Empire, during which the cathedral was pillaged.[184] The Turkish foreign minister, Mevlüt Çavuşoğlu, told TRT Haber on 13 July that the government was surprised at the reaction of UNESCO, saying that "We have to protect our ancestors’ heritage. The function can be this way or that way – it does not matter".[198]

On 14 July the prime minister of Greece, Kyriakos Mitsotakis, said his government was "considering its response at all levels" to what he called Turkey's "unnecessary, petty initiative", and that "with this backward action, Turkey is opting to sever links with western world and its values".[199] In relation to both Hagia Sophia and the Cyprus–Turkey maritime zones dispute, Mitsotakis called for European sanctions against Turkey, referring to it as "a regional troublemaker, and which is evolving into a threat to the stability of the whole south-east Mediterranean region".[199] Dora Bakoyannis, Greek former foreign minister, said Turkey's actions had "crossed the Rubicon", distancing itself from the West.[200] On the day of the building's re-opening, Mitsotakis called the re-conversion evidence of Turkey's weakness rather than a show of power.[162]

Armenia's Foreign Ministry expressed "deep concern" about the move, adding that it brought to a close Hagia Sophia's symbolism of "cooperation and unity of humankind instead of clash of civilizations."[201] Catholicos Karekin II, the head of the Armenian Apostolic Church, said the move "violat[ed] the rights of national religious minorities in Turkey"[202] Sahak II Mashalian, the Armenian Patriarch of Constantinople, perceived as loyal to the Turkish government, endorsed the decision to convert the museum into a mosque. He said, "I believe that believers’ praying suits better the spirit of the temple instead of curious tourists running around to take pictures."[203]

In July 2021, UNESCO asked for an updated report on the state of conservation and expressed "grave concern". There were also some concerns about the future of its World Heritage status.[204] Turkey responded that the changes had "no negative impact" on UNESCO standards and the criticism is "biased and political".[205]

Architecture

 
a) Plan of the gallery (upper half)
b) Plan of the ground floor (lower half)

Hagia Sophia is one of the greatest surviving examples of Byzantine architecture.[6] Its interior is decorated with mosaics, marble pillars, and coverings of great artistic value. Justinian had overseen the completion of the greatest cathedral ever built up to that time, and it was to remain the largest cathedral for 1,000 years until the completion of the cathedral in Seville in Spain.[206]

The Hagia Sophia uses masonry construction. The structure has brick and mortar joints that are 1.5 times the width of the bricks. The mortar joints are composed of a combination of sand and minute ceramic pieces distributed evenly throughout the mortar joints. This combination of sand and potsherds was often used in Roman concrete, a predecessor to modern concrete. A considerable amount of iron was used as well, in the form of cramps and ties.[207]

Justinian's basilica was at once the culminating architectural achievement of late antiquity and the first masterpiece of Byzantine architecture. Its influence, both architecturally and liturgically, was widespread and enduring in the Eastern Christianity, Western Christianity, and Islam alike.[208][209]

 
Cutaway isometric projection

The vast interior has a complex structure. The nave is covered by a central dome which at its maximum is 55.6 m (182 ft 5 in) from floor level and rests on an arcade of 40 arched windows. Repairs to its structure have left the dome somewhat elliptical, with the diameter varying between 31.24 and 30.86 m (102 ft 6 in and 101 ft 3 in).[210]

At the western entrance and eastern liturgical side, there are arched openings extended by half domes of identical diameter to the central dome, carried on smaller semi-domed exedrae, a hierarchy of dome-headed elements built up to create a vast oblong interior crowned by the central dome, with a clear span of 76.2 m (250 ft).[6]

 
The geometric conception is based on mathematical formulas of Heron of Alexandria. It avoids use of irrational numbers for the construction

The theories of Hero of Alexandria, a Hellenistic mathematician of the 1st century AD, may have been utilized to address the challenges presented by building such an expansive dome over so large a space.[211] Svenshon and Stiffel proposed that the architects used Hero's proposed values for constructing vaults. The square measurements were calculated using the side-and-diagonal number progression, which results in squares defined by the numbers 12 and 17, wherein 12 defines the side of the square and 17 its diagonal, which have been used as standard values as early as in cuneiform Babylonian texts.[212]

Each of the four sides of the great square Hagia Sophia is approximately 31 m long,[213] and it was previously thought that this was the equivalent of 100 Byzantine feet.[212] Svenshon suggested that the size of the side of the central square of Hagia Sophia is not 100 Byzantine feet but instead 99 feet. This measurement is not only rational, but it is also embedded in the system of the side-and-diagonal number progression (70/99) and therefore a usable value by the applied mathematics of antiquity. It gives a diagonal of 140 which is manageable for constructing a huge dome like that of the Hagia Sophia.[214]

Floor

 
The Omphalion, a marble section of the floor in Hagia Sophia, is the place where Byzantine emperors have been crowned. The stone floor of the Hagia Sophia dates from the 6th century.

The stone floor of Hagia Sophia dates from the 6th century. After the first collapse of the vault, the broken dome was left in situ on the original Justinianic floor and a new floor was laid above the rubble when the dome was rebuilt in 558.[215] From the installation of this second Justinianic floor, the floor became part of the liturgy, with significant locations and spaces demarcated in various ways using different-coloured stones and marbles.[215]

The floor is predominantly made up of Proconnesian marble, quarried on Proconnesus (Marmara Island) in the Propontis (Sea of Marmara). This was the main white marble used in the monuments of Constantinople. Other parts of the floor, like the Thessalian verd antique "marble", were quarried in Thessaly in Roman Greece. The Thessalian verd antique bands across the nave floor were often likened to rivers.[216]

The floor was praised by numerous authors and repeatedly compared to a sea.[110] The Justinianic poet Paul the Silentiary likened the ambo and the solea connecting it to the sanctuary with an island in a sea, with the sanctuary itself a harbour.[110] The 9th-century Narratio writes of it as "like the sea or the flowing waters of a river".[110] Michael the Deacon in the 12th century also described the floor as a sea in which the ambo and other liturgical furniture stood as islands.[110] During the 15th-century conquest of Constantinople, the Ottoman caliph Mehmed is said to have ascended to the dome and the galleries in order to admire the floor, which according to Tursun Beg resembled "a sea in a storm" or a "petrified sea".[110] Other Ottoman-era authors also praised the floor; Tâcîzâde Cafer Çelebi compared it to waves of marble.[110] The floor was hidden beneath a carpet on 22 July 2020.[161]

Narthex and portals

The Imperial Gate, or Imperial Door, was the main entrance between the exo- and esonarthex, and it was originally exclusively used by the emperor.[217][218] A long ramp from the northern part of the outer narthex leads up to the upper gallery.[citation needed]

 
West side of the upper gallery

Upper gallery

The upper gallery, or matroneum, is horseshoe-shaped; it encloses the nave on three sides and is interrupted by the apse. Several mosaics are preserved in the upper gallery, an area traditionally reserved for the Empress and her court. The best-preserved mosaics are located in the southern part of the gallery.

 
Slope leading to the upper gallery in the Hagia Sophia

.

The northern first floor gallery contains runic graffiti believed to have been left by members of the Varangian Guard.[219] Structural damage caused by natural disasters is visible on the Hagia Sophia's exterior surface. To ensure that the Hagia Sophia did not sustain any damage on the interior of the building, studies have been conducted using ground penetrating radar within the gallery of the Hagia Sophia. With the use of ground-penetrating radar (GPR), teams discovered weak zones within the Hagia Sophia's gallery and also concluded that the curvature of the vault dome has been shifted out of proportion, compared to its original angular orientation.[220]

Dome

The dome of Hagia Sophia has spurred particular interest for many art historians, architects, and engineers because of the innovative way the original architects envisioned it. The dome is carried on four spherical triangular pendentives, making the Hagia Sophia one of the first large-scale uses of this element. The pendentives are the corners of the square base of the dome, and they curve upwards into the dome to support it, thus restraining the lateral forces of the dome and allowing its weight to flow downwards.[221][222] The main dome of the Hagia Sophia was the largest pendentive dome in the world until the completion of St Peter's Basilica, and it has a much lower height than any other dome of such a large diameter.

The great dome at the Hagia Sophia is 32.6 meters (one hundred and seven feet) in diameter and is only 0.61 meters (two feet) thick. The main building materials for the original Hagia Sophia were brick and mortar. Brick aggregate was used to make roofs easier to construct. The aggregate weighs 2402.77 kilograms per cubic meter (150 pounds per cubic foot), an average weight of masonry construction at the time. Due to the materials plasticity, it was chosen over cut stone due to the fact that aggregate can be used over a longer distance.[223] According to Rowland Mainstone, "it is unlikely that the vaulting-shell is anywhere more than one normal brick in thickness".[224]

The weight of the dome remained a problem for most of the building's existence. The original cupola collapsed entirely after the earthquake of 558; in 563 a new dome was built by Isidore the Younger, a nephew of Isidore of Miletus. Unlike the original, this included 40 ribs and was raised 6.1 meters (20 feet), in order to lower the lateral forces on the church walls. A larger section of the second dome collapsed as well, over two episodes, so that as of 2021, only two sections of the present dome, the north and south sides, are from the 562 reconstructions. Of the whole dome's 40 ribs, the surviving north section contains eight ribs, while the south section includes six ribs.[225]

Although this design stabilizes the dome and the surrounding walls and arches, the actual construction of the walls of Hagia Sophia weakened the overall structure. The bricklayers used more mortar than brick, which is more effective if the mortar was allowed to settle, as the building would have been more flexible; however, the builders did not allow the mortar to cure before they began the next layer. When the dome was erected, its weight caused the walls to lean outward because of the wet mortar underneath. When Isidore the Younger rebuilt the fallen cupola, he had first to build up the interior of the walls to make them vertical again. Additionally, the architect raised the height of the rebuilt dome by approximately 6 m (20 ft) so that the lateral forces would not be as strong and its weight would be transmitted more effectively down into the walls. Moreover, he shaped the new cupola like a scalloped shell or the inside of an umbrella, with ribs that extend from the top down to the base. These ribs allow the weight of the dome to flow between the windows, down the pendentives, and ultimately to the foundation.[226]

Hagia Sophia is famous for the light that reflects everywhere in the interior of the nave, giving the dome the appearance of hovering above. This effect was achieved by inserting forty windows around the base of the original structure. Moreover, the insertion of the windows in the dome structure reduced its weight.[226]

Buttresses

Numerous buttresses have been added throughout the centuries. The flying buttresses to the west of the building, although thought to have been constructed by the Crusaders upon their visit to Constantinople, were actually built during the Byzantine era. This shows that the Romans had prior knowledge of flying buttresses, which can also be seen at in Greece, at the Rotunda of Galerius in Thessaloniki, at the monastery of Hosios Loukas in Boeotia, and in Italy at the octagonal basilica of San Vitale in Ravenna.[226] Other buttresses were constructed during the Ottoman times under the guidance of the architect Sinan. A total of 24 buttresses were added.[227]

Minarets

 
Minarets of Hagia Sophia

The minarets were an Ottoman addition and not part of the original church's Byzantine design. They were built for notification of invitations for prayers (adhan) and announcements. Mehmed had built a wooden minaret over one of the half domes soon after Hagia Sophia's conversion from a cathedral to a mosque. This minaret does not exist today. One of the minarets (at southeast) was built from red brick and can be dated back from the reign of Mehmed or his successor Beyazıd II. The other three were built from white limestone and sandstone, of which the slender northeast column was erected by Bayezid II and the two identical, larger minarets to the west were erected by Selim II and designed by the famous Ottoman architect Mimar Sinan. Both are 60 m (200 ft) in height, and their thick and massive patterns complete Hagia Sophia's main structure. Many ornaments and details were added to these minarets on repairs during the 15th, 16th, and 19th centuries, which reflect each period's characteristics and ideals.[228][229]

Notable elements and decorations

Originally, under Justinian's reign, the interior decorations consisted of abstract designs on marble slabs on the walls and floors as well as mosaics on the curving vaults. Of these mosaics, the two archangels Gabriel and Michael are still visible in the spandrels (corners) of the bema. There were already a few figurative decorations, as attested by the late 6th-century ekphrasis of Paul the Silentiary, the Description of Hagia Sophia. The spandrels of the gallery are faced in inlaid thin slabs (opus sectile), showing patterns and figures of flowers and birds in precisely cut pieces of white marble set against a background of black marble. In later stages, figurative mosaics were added, which were destroyed during the iconoclastic controversy (726–843). Present mosaics are from the post-iconoclastic period.

Apart from the mosaics, many figurative decorations were added during the second half of the 9th century: an image of Christ in the central dome; Eastern Orthodox saints, prophets and Church Fathers in the tympana below; historical figures connected with this church, such as Patriarch Ignatius; and some scenes from the Gospels in the galleries. Basil II let artists paint a giant six-winged seraph on each of the four pendentives.[78] The Ottomans covered their faces with golden stars,[78] but in 2009, one of them was restored to its original state.[230]

Loggia of the Empress

The loggia of the empress is located in the centre of the gallery of the Hagia Sophia, above the Imperial Gate and directly opposite the apse. From this matroneum (women's gallery), the empress and the court-ladies would watch the proceedings down below. A green stone disc of verd antique marks the spot where the throne of the empress stood.[231][232]

Lustration urns

Two huge marble lustration (ritual purification) urns were brought from Pergamon during the reign of Sultan Murad III. They are from the Hellenistic period and carved from single blocks of marble.[17]

Marble Door

The Marble Door inside the Hagia Sophia is located in the southern upper enclosure or gallery. It was used by the participants in synods, who entered and left the meeting chamber through this door. It is said[by whom?] that each side is symbolic and that one side represents heaven while the other represents hell. Its panels are covered in fruits and fish motifs. The door opens into a space that was used as a venue for solemn meetings and important resolutions of patriarchate officials.[233]

The Nice Door

The Nice Door is the oldest architectural element found in the Hagia Sophia dating back to the 2nd century BC. The decorations are of reliefs of geometric shapes as well as plants that are believed to have come from a pagan temple in Tarsus in Cilicia, part of the Cibyrrhaeot Theme in modern-day Mersin Province in south-eastern Turkey. It was incorporated into the building by Emperor Theophilos in 838 where it is placed in the south exit in the inner narthex.[234]

Imperial Gate

The Imperial Gate is the door that was used solely by the Emperor and his personal bodyguard and retinue.[218] It is the largest door in the Hagia Sophia and has been dated to the 6th century. It is about 7 meters long and Byzantine sources say it was made with wood from Noah's Ark.[235]

In April 2022, the door was vandalised by unknown assailant(s). The incident became known after the Association of Art Historians published a photo with the destruction. Greek Foreign Ministry condemned the incident, while Turkish officials claimed that "a citizen has taken a piece of the door" and started an investigation.[236]

Wishing column

At the northwest of the building, there is a column with a hole in the middle covered by bronze plates. This column goes by different names; the "perspiring" or "sweating column", the "crying column", or the "wishing column". Legend states that it has been moist since the appearance of Gregory the Wonderworker near the column in 1200. It is believed that touching the moisture cures many illnesses.[237][238]

Mosaics

 
Ceiling decoration showing original Christian cross still visible through the later aniconic decoration

The first mosaics which adorned the church were completed during the reign of Justin II.[239] Many of the non-figurative mosaics in the church come from this period. Most of the mosaics, however, were created in the 10th and 12th centuries,[240][better source needed] following the periods of Byzantine Iconoclasm.

During the Sack of Constantinople in 1204, the Latin Crusaders vandalized valuable items in every important Byzantine structure of the city, including the golden mosaics of the Hagia Sophia. Many of these items were shipped to Venice, whose Doge Enrico Dandolo had organized the invasion and sack of Constantinople after an agreement with Prince Alexios Angelos, the son of a deposed Byzantine emperor.

19th-century restoration

Following the building's conversion into a mosque in 1453, many of its mosaics were covered with plaster, due to Islam's ban on representational imagery. This process was not completed at once, and reports exist from the 17th century in which travellers note that they could still see Christian images in the former church. In 1847–1849, the building was restored by two Swiss-Italian Fossati brothers, Gaspare and Giuseppe, and Sultan Abdulmejid I allowed them to also document any mosaics they might discover during this process, which were later archived in Swiss libraries.[241][better source needed] This work did not include repairing the mosaics, and after recording the details about an image, the Fossatis painted it over again. The Fossatis restored the mosaics of the two hexapteryga (singular Greek: ἑξαπτέρυγον, pr. hexapterygon, six-winged angel; it is uncertain whether they are seraphim or cherubim) located on the two east pendentives, and covered their faces again before the end of the restoration.[242] The other two mosaics, placed on the west pendentives, are copies in paint created by the Fossatis since they could find no surviving remains of them.[242] As in this case, the architects reproduced in paint damaged decorative mosaic patterns, sometimes redesigning them in the process. The Fossati records are the primary sources about a number of mosaic images now believed to have been completely or partially destroyed in the 1894 Istanbul earthquake. These include a mosaic over a now-unidentified Door of the Poor, a large image of a jewel-encrusted cross, and many images of angels, saints, patriarchs, and church fathers. Most of the missing images were located in the building's two tympana.

One mosaic they documented is Christ Pantocrator in a circle, which would indicate it to be a ceiling mosaic, possibly even of the main dome, which was later covered and painted over with Islamic calligraphy that expounds God as the light of the universe. The Fossatis' drawings of the Hagia Sophia mosaics are today kept in the Archive of the Canton of Ticino.[243]

20th-century restoration

Many mosaics were uncovered in the 1930s by a team from the Byzantine Institute of America led by Thomas Whittemore. The team chose to let a number of simple cross images remain covered by plaster but uncovered all major mosaics found.

Because of its long history as both a church and a mosque, a particular challenge arises in the restoration process. Christian iconographic mosaics can be uncovered, but often at the expense of important and historic Islamic art. Restorers have attempted to maintain a balance between both Christian and Islamic cultures. In particular, much controversy rests upon whether the Islamic calligraphy on the dome of the cathedral should be removed, in order to permit the underlying Pantocrator mosaic of Christ as Master of the World to be exhibited (assuming the mosaic still exists).[244]

The Hagia Sophia has been a victim of natural disasters that have caused deterioration to the buildings structure and walls. The deterioration of the Hagia Sophia's walls can be directly attributed to salt crystallization. The crystallization of salt is due to an intrusion of rainwater that causes the Hagia Sophia's deteriorating inner and outer walls. Diverting excess rainwater is the main solution to the deteriorating walls at the Hagia Sophia.[245]

Built between 532 and 537, a subsurface structure under the Hagia Sophia has been under investigation, using LaCoste-Romberg gravimeters to determine the depth of the subsurface structure and to discover other hidden cavities beneath the Hagia Sophia. The hidden cavities have also acted as a support system against earthquakes. With these findings using the LaCoste-Romberg gravimeters, it was also discovered that the Hagia Sophia's foundation is built on a slope of natural rock.[246]

Imperial Gate mosaic

The Imperial Gate mosaic is located in the tympanum above that gate, which was used only by the emperors when entering the church. Based on style analysis, it has been dated to the late 9th or early 10th century. The emperor with a nimbus or halo could possibly represent emperor Leo VI the Wise or his son Constantine VII Porphyrogenitus bowing down before Christ Pantocrator, seated on a jewelled throne, giving his blessing and holding in his left hand an open book.[247] The text on the book reads: "Peace be with you" (John 20:19, 20:26) and "I am the light of the world" (John 8:12). On each side of Christ's shoulders is a circular medallion with busts: on his left the Archangel Gabriel, holding a staff, on his right his mother Mary.[248]

Southwestern entrance mosaic

The southwestern entrance mosaic, situated in the tympanum of the southwestern entrance, dates from the reign of Basil II.[249] It was rediscovered during the restorations of 1849 by the Fossatis. The Virgin sits on a throne without a back, her feet resting on a pedestal, embellished with precious stones. The Christ Child sits on her lap, giving his blessing and holding a scroll in his left hand. On her left side stands emperor Constantine in ceremonial attire, presenting a model of the city to Mary. The inscription next to him says: "Great emperor Constantine of the Saints". On her right side stands emperor Justinian I, offering a model of the Hagia Sophia. The medallions on both sides of the Virgin's head carry the nomina sacra MP and ΘΥ, abbreviations of the Greek: Μήτηρ του Θεοῦ, romanizedMētēr Theou, lit.'Mother of God'.[250] The composition of the figure of the Virgin enthroned was probably copied from the mosaic inside the semi-dome of the apse inside the liturgical space.[251]

Apse mosaics

The mosaic in the semi-dome above the apse at the east end shows Mary, mother of Jesus holding the Christ Child and seated on a jewelled thokos backless throne.[251] Since its rediscovery after a period of concealment in the Ottoman era, it "has become one of the foremost monuments of Byzantium".[251] The infant Jesus's garment is depicted with golden tesserae.

Guillaume-Joseph Grelot [fr], who had travelled to Constantinople, in 1672 engraved and in 1680 published in Paris an image of the interior of Hagia Sophia which shows the apse mosaic indistinctly.[251] Together with a picture by Cornelius Loos drawn in 1710, these images are early attestations of the mosiac before it was covered towards the end of the 18th century.[251] The mosaic of the Virgin and Child was rediscovered during the restorations of the Fossati brothers in 1847–1848 and revealed by the restoration of Thomas Whittemore in 1935–1939.[251] It was studied again in 1964 with the aid of scaffolding.[251][252]

It is not known when this mosaic was installed.[251] According to Cyril Mango, the mosaic is "a curious reflection on how little we know about Byzantine art".[253] The work is generally believed to date from after the end of Byzantine Iconoclasm and usually dated to the patriarchate of Photius I (r. 858–867, 877–886) and the time of the emperors Michael III (r. 842–867) and Basil I (r. 867–886).[251] Most specifically, the mosaic has been connected with a surviving homily known to have been written and delivered by Photius in the cathedral on 29 March 867.[251][254][255][256][257]

Other scholars have favoured earlier or later dates for the present mosaic or its composition. Nikolaos Oikonomides pointed out that Photius's homily refers to standing portrait of the Theotokos – a Hodegetria – while the present mosaic shows her seated.[258] Likewise, a biography of the patriarch Isidore I (r. 1347–1350) by his successor Philotheus I (r. 1353–1354, 1364–1376) composed before 1363 describes Isidore seeing a standing image of the Virgin at Epiphany in 1347.[251] Serious damage was done to the building by earthquakes in the 14th century, and it is possible that a standing image of the Virgin that existed in Photius's time was lost in the earthquake of 1346, in which the eastern end of Hagia Sophia was partly destroyed.[259][251] This interpretation supposes that the present mosaic of the Virgin and Child enthroned is of the late 14th century, a time in which, beginning with Nilus of Constantinople (r. 1380–1388), the patriarchs of Constantinople began to have official seals depicting the Theotokos enthroned on a thokos.[260][251]

Still other scholars have proposed an earlier date than the later 9th century. According to George Galavaris, the mosaic seen by Photius was a Hodegetria portrait which after the earthquake of 989 was replaced by the present image not later than the early 11th century.[260][259] According to Oikonomides however, the image in fact dates to before the Triumph of Orthodoxy, having been completed c. 787–797, during the iconodule interlude between the First Iconoclast (726–787) and the Second Iconoclast (814–842) periods.[258] Having been plastered over in the Second Iconoclasm, Oikonomides argues a new, standing image of the Virgin Hodegetria was created above the older mosaic in 867, which then fell off in the earthquakes of the 1340s and revealed again the late 8th-century image of the Virgin enthroned.[258]

More recently, analysis of a hexaptych menologion icon panel from Saint Catherine's Monastery at Mount Sinai has determined that the panel, showing numerous scenes from the life of the Virgin and other theologically significant iconic representations, contains an image at the centre very similar to that in Hagia Sophia.[251] The image is labelled in Greek merely as: Μήτηρ Θεοῦ, romanizedMētēr Theou, lit.'Mother of God', but in the Georgian language the inscription reveals the image is labelled "of the semi-dome of Hagia Sophia".[251] This image is therefore the oldest depiction of the apse mosaic known and demonstrates that the apse mosaic's appearance was similar to the present day mosaic in the late 11th or early 12th centuries, when the hexaptych was inscribed in Georgian by a Georgian monk, which rules out a 14th-century date for the mosaic.[251]

The portraits of the archangels Gabriel and Michael (largely destroyed) in the bema of the arch also date from the 9th century. The mosaics are set against the original golden background of the 6th century. These mosaics were believed to be a reconstruction of the mosaics of the 6th century that were previously destroyed during the iconoclastic era by the Byzantines of that time, as represented in the inaugural sermon by the patriarch Photios. However, no record of figurative decoration of Hagia Sophia exists before this time.[261]

Emperor Alexander mosaic

The Emperor Alexander mosaic is not easy to find for the first-time visitor, located on the second floor in a dark corner of the ceiling. It depicts the emperor Alexander in full regalia, holding a scroll in his right hand and a globus cruciger in his left. A drawing by the Fossatis showed that the mosaic survived until 1849 and that Thomas Whittemore, founder of the Byzantine Institute of America who was granted permission to preserve the mosaics, assumed that it had been destroyed in the earthquake of 1894. Eight years after his death, the mosaic was discovered in 1958 largely through the researches of Robert Van Nice. Unlike most of the other mosaics in Hagia Sophia, which had been covered over by ordinary plaster, the Alexander mosaic was simply painted over and reflected the surrounding mosaic patterns and thus was well hidden. It was duly cleaned by the Byzantine Institute's successor to Whittemore, Paul A. Underwood.[262][263]

Empress Zoe mosaic

The Empress Zoe mosaic on the eastern wall of the southern gallery dates from the 11th century. Christ Pantocrator, clad in the dark blue robe (as is the custom in Byzantine art), is seated in the middle against a golden background, giving his blessing with the right hand and holding the Bible in his left hand. On either side of his head are the nomina sacra IC and XC, meaning Iēsous Christos. He is flanked by Constantine IX Monomachus and Empress Zoe, both in ceremonial costumes. He is offering a purse, as a symbol of donation, he made to the church, while she is holding a scroll, symbol of the donations she made. The inscription over the head of the emperor says: "Constantine, pious emperor in Christ the God, king of the Romans, Monomachus". The inscription over the head of the empress reads as follows: "Zoë, the very pious Augusta". The previous heads have been scraped off and replaced by the three present ones. Perhaps the earlier mosaic showed her first husband Romanus III Argyrus or her second husband Michael IV. Another theory is that this mosaic was made for an earlier emperor and empress, with their heads changed into the present ones.[264]

Comnenus mosaic

The Comnenus mosaic, also located on the eastern wall of the southern gallery, dates from 1122. The Virgin Mary is standing in the middle, depicted, as usual in Byzantine art, in a dark blue gown. She holds the Christ Child on her lap. He gives his blessing with his right hand while holding a scroll in his left hand. On her right side stands emperor John II Comnenus, represented in a garb embellished with precious stones. He holds a purse, symbol of an imperial donation to the church. his wife, the empress Irene of Hungary stands on the left side of the Virgin, wearing ceremonial garments and offering a document. Their eldest son Alexius Comnenus is represented on an adjacent pilaster. He is shown as a beardless youth, probably representing his appearance at his coronation aged seventeen. In this panel, one can already see a difference with the Empress Zoe mosaic that is one century older. There is a more realistic expression in the portraits instead of an idealized representation. The Empress Irene (born Piroska), daughter of Ladislaus I of Hungary, is shown with plaited blond hair, rosy cheeks, and grey eyes, revealing her Hungarian descent. The emperor is depicted in a dignified manner.[265]

Deësis mosaic

The Deësis mosaic (Δέησις, "Entreaty") probably dates from 1261. It was commissioned to mark the end of 57 years of Latin Catholic use and the return to the Eastern Orthodox faith. It is the third panel situated in the imperial enclosure of the upper galleries. It is widely considered the finest in Hagia Sophia, because of the softness of the features, the humane expressions and the tones of the mosaic. The style is close to that of the Italian painters of the late 13th or early 14th century, such as Duccio. In this panel the Virgin Mary and John the Baptist (Ioannes Prodromos), both shown in three-quarters profile, are imploring the intercession of Christ Pantocrator for humanity on Judgment Day. The bottom part of this mosaic is badly deteriorated.[266] This mosaic is considered as the beginning of a renaissance in Byzantine pictorial art.[267]

Northern tympanum mosaics

The northern tympanum mosaics feature various saints. They have been able to survive due to their high and inaccessible location. They depict Patriarchs of Constantinople John Chrysostom and Ignatios of Constantinople standing, clothed in white robes with crosses, and holding richly jewelled Bibles. The figures of each patriarch, revered as saints, are identifiable by labels in Greek. The other mosaics in the other tympana have not survived probably due to the frequent earthquakes, as opposed to any deliberate destruction by the Ottoman conquerors.[268]

Dome mosaic

The dome was decorated with four non-identical figures of the six-winged angels which protect the Throne of God; it is uncertain whether they are seraphim or cherubim. The mosaics survive in the eastern part of the dome, but since the ones on the western side were damaged during the Byzantine period, they have been renewed as frescoes. During the Ottoman period each seraph's (or cherub's) face was covered with metallic lids in the shape of stars, but these were removed to reveal the faces during renovations in 2009.[269]

Other burials

Gallery

Works influenced by the Hagia Sophia

 
The Church of Saint Sava in Belgrade has been modelled after Hagia Sophia, using its primary square and the size of its dome
 
Interior of the Church of Saint Sava

Many religious buildings have been modeled on the Hagia Sophia's core structure of a large central dome resting on pendentives and buttressed by two semi-domes.

Byzantine churches modeled on the Hagia Sophia include the Hagia Sophia in Thessaloniki, Greece as well as the Hagia Irene, which was remodeled to have a dome similar to that Hagia Sophia during the reign of Justinian.

Several mosques commissioned by the Ottoman dynasty have similar measurements to the Hagia Sophia, including the Süleymaniye Mosque and the Bayezid II Mosque.[270][271] Ottoman architects preferred to surround the central dome with four semi-domes rather than two.[272] There are four semi-domes on the Sultan Ahmed Mosque, the Fatih Mosque,[208] and the New Mosque (Istanbul). As in the original plan of the Hagia Sophia, many of these mosques are also entered through a colonnaded courtyard, although the courtyard of the Hagia Sophia no longer exists.

Neo-Byzantine churches modeled on the Hagia Sophia include the Kronstadt Naval Cathedral, Holy Trinity Cathedral, Sibiu[273] and Poti Cathedral which closely replicate the internal geometry of the Hagia Sophia. The interior of the Kronstadt Naval Cathedral is nearly identical to the Hagia Sophia. The marble revetment also closely mimics the source work. Like Ottoman mosques, many churches based on the Hagia Sophia include four semi-domes rather than two, such as the Church of Saint Sava in Belgrade.[274][275]

Several churches combine the layout of the Hagia Sophia with a Latin cross plan. One such church is the Cathedral Basilica of Saint Louis (St. Louis), where the transept is formed by two semi-domes surrounding the main dome. This church also closely emulates the column capitals and mosaic styles of the Hagia Sophia. Other examples include the Alexander Nevsky Cathedral, Sofia, St Sophia's Cathedral, London, Saint Clement Catholic Church, Chicago, and Basilica of the National Shrine of the Immaculate Conception. The Catedral Metropolitana Ortodoxa in São Paulo and the Église du Saint-Esprit (Paris) closely follow the interior layout of the Hagia Sophia. Both include four semi-domes, but the two lateral semi-domes are very shallow. In terms of size, the Église du Saint-Esprit is about two-thirds the scale of the Hagia Sophia.

Synagogues based on the Hagia Sophia include the Congregation Emanu-El (San Francisco),[276] Great Synagogue of Florence, and Hurva Synagogue.

See also

References

Notes

  1. ^ Also translated: "I think of Hagia Sophia and I am very saddened."[176]

Citations

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hagia, sophia, several, terms, redirect, here, other, uses, disambiguation, list, churches, dedicated, holy, wisdom, sophia, rome, churches, holy, wisdom, ancient, greek, Ἁγία, Σοφία, romanized, hagía, sophía, latin, sancta, sapientia, turkish, ayasofya, offic. Several terms redirect here For other uses see Hagia Sophia disambiguation List of churches dedicated to Holy Wisdom and Sophia of Rome Churches Hagia Sophia lit Holy Wisdom Ancient Greek Ἁgia Sofia romanized Hagia Sophia Latin Sancta Sapientia Turkish Ayasofya officially the Hagia Sophia Grand Mosque Turkish Ayasofya Camii 3 is a mosque and major cultural and historical site in Istanbul Turkey The mosque was originally built as an Eastern Orthodox church and was used as such from the year 360 until the conquest of Constantinople by the Ottoman Empire in 1453 It served as a mosque until 1935 when it became a museum In 2020 the site once again became a mosque Hagia SophiaἉgia Sofia Greek Sancta Sapientia Latin Ayasofya Turkish Hagia Sophia was built in 537 with minarets added in the 15th 16th centuries when it became a mosque 1 41 00 30 N 28 58 48 E 41 00833 N 28 98000 E 41 00833 28 98000 Coordinates 41 00 30 N 28 58 48 E 41 00833 N 28 98000 E 41 00833 28 98000LocationFatih Istanbul TurkeyDesignerIsidore of MiletusAnthemius of TrallesTypeByzantine Christian cathedral c 360 1204 1261 1453 Latin Catholic cathedral 1204 1261 Museum 1935 2020 Mosque 1453 1935 2020 present MaterialAshlar Roman brickLength82 m 269 ft Width73 m 240 ft Height55 m 180 ft Beginning date360 1663 years ago 360 Completion date537 1486 years ago 537 Dedicated toThe Holy Wisdom a reference to the second person of the Trinity or Jesus Christ 2 WebsiteOfficial websiteUNESCO World Heritage SitePart ofHistoric Areas of IstanbulCriteriaCultural i ii iii ivReference356Inscription1985 9th Session The current structure was built by the Byzantine emperor Justinian I as the Christian cathedral of Constantinople for the Byzantine Empire between 532 and 537 and was designed by the Greek geometers Isidore of Miletus and Anthemius of Tralles 4 It was formally called the Church of the Holy Wisdom Greek Naὸs tῆs Ἁgias toῦ 8eoῦ Sofias romanized Naos tes Hagias tou Theou Sophias 5 and upon completion became the world s largest interior space and among the first to employ a fully pendentive dome It is considered the epitome of Byzantine architecture 6 and is said to have changed the history of architecture 7 The present Justinianic building was the third church of the same name to occupy the site as the prior one had been destroyed in the Nika riots As the episcopal see of the ecumenical patriarch of Constantinople it remained the world s largest cathedral for nearly a thousand years until Seville Cathedral was completed in 1520 Beginning with subsequent Byzantine architecture Hagia Sophia became the paradigmatic Orthodox church form and its architectural style was emulated by Ottoman mosques a thousand years later 8 It has been described as holding a unique position in the Christian world 8 and as an architectural and cultural icon of Byzantine and Eastern Orthodox civilization 9 10 8 The religious and spiritual centre of the Eastern Orthodox Church for nearly one thousand years the church was dedicated to the Holy Wisdom 11 12 13 It was where the excommunication of Patriarch Michael I Cerularius was officially delivered by Humbert of Silva Candida the envoy of Pope Leo IX in 1054 an act considered the start of the East West Schism In 1204 it was converted during the Fourth Crusade into a Catholic cathedral under the Latin Empire before being returned to the Eastern Orthodox Church upon the restoration of the Byzantine Empire in 1261 The doge of Venice who led the Fourth Crusade and the 1204 Sack of Constantinople Enrico Dandolo was buried in the church After the Fall of Constantinople to the Ottoman Empire in 1453 14 it was converted to a mosque by Mehmed the Conqueror and became the principal mosque of Istanbul until the 1616 construction of the Sultan Ahmed Mosque 15 16 Upon its conversion the bells altar iconostasis ambo and baptistery were removed while iconography such as the mosaic depictions of Jesus Mary Christian saints and angels were removed or plastered over 17 Islamic architectural additions included four minarets a minbar and a mihrab The Byzantine architecture of the Hagia Sophia served as inspiration for many other religious buildings including the Hagia Sophia in Thessaloniki Panagia Ekatontapiliani the Sehzade Mosque the Suleymaniye Mosque the Rustem Pasha Mosque and the Kilic Ali Pasha Complex The patriarchate moved to the Church of the Holy Apostles which became the city s cathedral The complex remained a mosque until 1931 when it was closed to the public for four years It was re opened in 1935 as a museum under the secular Republic of Turkey and the building is Turkey s most visited tourist attraction as of 2019 update 18 In July 2020 the Council of State annulled the 1934 decision to establish the museum and the Hagia Sophia was reclassified as a mosque The 1934 decree was ruled to be unlawful under both Ottoman and Turkish law as Hagia Sophia s waqf endowed by Sultan Mehmed had designated the site a mosque proponents of the decision argued the Hagia Sophia was the personal property of the sultan and that the building symbolizes the Muslim identity of Turkey The decision to designate Hagia Sophia as a mosque was highly controversial and drew condemnation from the Turkish opposition UNESCO the World Council of Churches the International Association of Byzantine Studies as well as numerous international leaders Contents 1 History 1 1 Church of Constantius II 1 2 Church of Theodosius II 1 3 Church of Justinian I current structure 1 4 Mosque 1453 1935 1 4 1 Renovation of 1847 1849 1 4 2 Occupation of Istanbul 1918 1923 1 5 Museum 1935 2020 1 6 Reversion to mosque 2018 present 1 6 1 International reaction 2 Architecture 2 1 Floor 2 2 Narthex and portals 2 3 Upper gallery 2 4 Dome 2 5 Buttresses 2 6 Minarets 3 Notable elements and decorations 3 1 Loggia of the Empress 3 2 Lustration urns 3 3 Marble Door 3 4 The Nice Door 3 5 Imperial Gate 3 6 Wishing column 4 Mosaics 4 1 19th century restoration 4 2 20th century restoration 4 3 Imperial Gate mosaic 4 4 Southwestern entrance mosaic 4 5 Apse mosaics 4 6 Emperor Alexander mosaic 4 7 Empress Zoe mosaic 4 8 Comnenus mosaic 4 9 Deesis mosaic 4 10 Northern tympanum mosaics 4 11 Dome mosaic 5 Other burials 6 Gallery 7 Works influenced by the Hagia Sophia 8 See also 9 References 9 1 Notes 9 2 Citations 9 3 Sources 10 Further reading 11 External linksHistory EditChurch of Constantius II Edit Hagia Sophia Istanbul Turkey ca 1897 The first church on the site was known as the Magna Ecclesia Megalh Ἐkklhsia Megale Ekklesia Great Church 19 20 because of its size compared to the sizes of the contemporary churches in the city 11 According to the Chronicon Paschale the church was consecrated on 15 February 360 during the reign of the emperor Constantius II r 337 361 by the Arian bishop Eudoxius of Antioch 21 22 It was built next to the area where the Great Palace was being developed According to the 5th century ecclesiastical historian Socrates of Constantinople the emperor Constantius had c 346 constructed the Great Church alongside that called Irene which because it was too small the emperor s father Constantine had enlarged and beautified 23 21 A tradition which is not older than the 7th or 8th century reports that the edifice was built by Constantius father Constantine the Great r 306 337 21 Hesychius of Miletus wrote that Constantine built Hagia Sophia with a wooden roof and removed 427 mostly pagan statues from the site 24 The 12th century chronicler Joannes Zonaras reconciles the two opinions writing that Constantius had repaired the edifice consecrated by Eusebius of Nicomedia after it had collapsed 21 Since Eusebius was the bishop of Constantinople from 339 to 341 and Constantine died in 337 it seems that the first church was erected by Constantius 21 View of the dome interior The nearby Hagia Irene Holy Peace church was completed earlier and served as cathedral until the Great Church was completed Besides Hagia Irene there is no record of major churches in the city centre before the late 4th century 22 Rowland Mainstone argued the 4th century church was not yet known as Hagia Sophia 25 Though its name as the Great Church implies that it was larger than other Constantinopolitan churches the only other major churches of the 4th century were the Church of St Mocius which lay outside the Constantinian walls and was perhaps attached to a cemetery and the Church of the Holy Apostles 22 The church itself is known to have had a timber roof curtains columns and an entrance that faced west 22 It likely had a narthex and is described as being shaped like a Roman circus 26 This may mean that it had a U shaped plan like the basilicas of San Marcellino e Pietro and Sant Agnese fuori le mura in Rome 22 However it may also have been a more conventional three four or five aisled basilica perhaps resembling the original Church of the Holy Sepulchre in Jerusalem or the Church of the Nativity in Bethlehem 22 The building was likely preceded by an atrium as in the later churches on the site citation needed According to Ken Dark and Jan Kostenec a further remnant of the 4th century basilica may exist in a wall of alternating brick and stone banded masonry immediately to the west of the Justinianic church 27 The top part of the wall is constructed with bricks stamped with brick stamps dating from the 5th century but the lower part is of constructed with bricks typical of the 4th century 27 This wall was probably part of the propylaeum at the west front of both the Constantinian and Theodosian Great Churches 27 The building was accompanied by a baptistery and a skeuophylakion 22 A hypogeum perhaps with an martyrium above it was discovered before 1946 and the remnants of a brick wall with traces of marble revetment were identified in 2004 27 The hypogeum was a tomb which may have been part of the 4th century church or may have been from the pre Constantinian city of Byzantium 27 The skeuophylakion is said by Palladius to have had a circular floor plan and since some U shaped basilicas in Rome were funerary churches with attached circular mausolea the Mausoleum of Constantina and the Mausoleum of Helena it is possible it originally had a funerary function though by 405 its use had changed 27 A later account credited a woman called Anna with donating the land on which the church was built in return for the right to be buried there 27 Excavations on the western side of the site of the first church under the propylaeum wall reveal that the first church was built atop a road about 8 m 26 ft wide 27 According to early accounts the first Hagia Sophia was built on the site of an ancient pagan temple 28 29 30 although there are no artefacts to confirm this 31 The Patriarch of Constantinople John Chrysostom came into a conflict with Empress Aelia Eudoxia wife of the emperor Arcadius r 383 408 and was sent into exile on 20 June 404 During the subsequent riots this first church was largely burnt down 21 Palladius noted that the 4th century skeuophylakion survived the fire 32 According to Dark and Kostenec the fire may only have affected the main basilica leaving the surrounding ancillary buildings intact 32 Church of Theodosius II Edit Theodosian capital for a column one of the few remains of the church of Theodosius II A second church on the site was ordered by Theodosius II r 402 450 who inaugurated it on 10 October 415 33 The Notitia Urbis Constantinopolitanae a fifth century list of monuments names Hagia Sophia as Magna Ecclesia Great Church while the former cathedral Hagia Irene is referred to as Ecclesia Antiqua Old Church At the time of Socrates of Constantinople around 440 both churches were enclosed by a single wall and served by the same clergy 23 Thus the complex would have encompassed a large area including the future site of the Hospital of Samson 32 If the fire of 404 destroyed only the 4th century main basilica church then the 5th century Theodosian basilica could have been built surrounded by a complex constructed primarily during the fourth century 32 During the reign of Theodosius II the emperor s elder sister the Augusta Pulcheria r 414 453 was challenged by the patriarch Nestorius r 10 April 428 22 June 431 34 35 The patriarch denied the Augusta access to the sanctuary of the Great Church likely on 15 April 428 35 According to the anonymous Letter to Cosmas the virgin empress a promoter of the cult of the Virgin Mary who habitually partook in the Eucharist at the sanctuary of Nestorius s predecessors claimed right of entry because of her equivalent position to the Theotokos the Virgin Mary having given birth to God 36 35 Their theological differences were part of the controversy over the title theotokos that resulted in the Council of Ephesus and the stimulation of Monophysitism and Nestorianism a doctrine which like Nestorius rejects the use of the title 34 Pulcheria along with Pope Celestine I and Patriarch Cyril of Alexandria had Nestorius overthrown condemned at the ecumenical council and exiled 36 34 The area of the western entrance to the Justinianic Hagia Sophia revealed the western remains of its Theodosian predecessor as well as some fragments of the Constantinian church 32 German archaeologist Alfons Maria Schneider began conducting archaeological excavations during the mid 1930s publishing his final report in 1941 32 Excavations in the area that had once been the 6th century atrium of the Justinianic church revealed the monumental western entrance and atrium along with columns and sculptural fragments from both 4th and 5th century churches 32 Further digging was abandoned for fear of harming the structural integrity of the Justinianic building but parts of the excavation trenches remain uncovered laying bare the foundations of the Theodosian building The basilica was built by architect Rufinus 37 38 The church s main entrance which may have had gilded doors faced west and there was an additional entrance to the east 39 There was a central pulpit and likely an upper gallery possibly employed as a matroneum women s section 39 The exterior was decorated with elaborate carvings of rich Theodosian era designs fragments of which have survived while the floor just inside the portico was embellished with polychrome mosaics 32 The surviving carved gable end from the centre of the western facade is decorated with a cross roundel 32 Fragments of a frieze of reliefs with 12 lambs representing the 12 apostles also remain unlike Justinian s 6th century church the Theodosian Hagia Sophia had both colourful floor mosaics and external decorative sculpture 32 At the western end surviving stone fragments of the structure show there was vaulting at least at the western end 32 The Theodosian building had a monumental propylaeum hall with a portico that may account for this vaulting which was thought by the original excavators in the 1930s to be part of the western entrance of the church itself 32 The propylaeum opened onto an atrium which lay in front of the basilica church itself Preceding the propylaeum was a steep monumental staircase following the contours of the ground as it sloped away westwards in the direction of the Strategion the Basilica and the harbours of the Golden Horn 32 This arrangement would have resembled the steps outside the atrium of the Constantinian Old St Peter s Basilica in Rome 32 Near the staircase there was a cistern perhaps to supply a fountain in the atrium or for worshippers to wash with before entering 32 The 4th century skeuophylakion was replaced in the 5th century by the present day structure a rotunda constructed of banded masonry in the lower two levels and of plain brick masonry in the third 32 Originally this rotunda probably employed as a treasury for liturgical objects had a second floor internal gallery accessed by an external spiral staircase and two levels of niches for storage 32 A further row of windows with marble window frames on the third level remain bricked up 32 The gallery was supported on monumental consoles with carved acanthus designs similar to those used on the late 5th century Column of Leo 32 A large lintel of the skeuophylakion s western entrance bricked up during the Ottoman era was discovered inside the rotunda when it was archaeologically cleared to its foundations in 1979 during which time the brickwork was also repointed 32 The skeuophylakion was again restored in 2014 by the Vakiflar 32 A fire started during the tumult of the Nika Revolt which had begun nearby in the Hippodrome of Constantinople and the second Hagia Sophia was burnt to the ground on 13 14 January 532 The court historian Procopius wrote 40 And by way of shewing that it was not against the Emperor alone that they the rioters had taken up arms but no less against God himself unholy wretches that they were they had the hardihood to fire the Church of the Christians which the people of Byzantium call Sophia an epithet which they have most appropriately invented for God by which they call His temple and God permitted them to accomplish this impiety foreseeing into what an object of beauty this shrine was destined to be transformed So the whole church at that time lay a charred mass of ruins Procopius De aedificiis I 1 21 22Remains of the Theodosian Hagia Sophia Column and capital with a Greek cross Porphyry column column capital impost block Soffits and cornice Theodosian capital Theodosian capital for a pilaster one of the few remains of the church of Theodosius II SoffitsChurch of Justinian I current structure Edit Originally a church later a mosque the 6th century Hagia Sophia 532 537 by Byzantine emperor Justinian the Great was the largest cathedral in the world for nearly a thousand years until the completion of the Seville Cathedral 1507 in Spain Construction of church depicted in codex Manasses Chronicle 14th century On 23 February 532 only a few weeks after the destruction of the second basilica Emperor Justinian I inaugurated the construction of a third and entirely different basilica larger and more majestic than its predecessors 41 Justinian appointed two architects mathematician Anthemius of Tralles and geometer and engineer Isidore of Miletus to design the building 42 43 Construction of the church began in 532 during the short tenure of Phocas as praetorian prefect 44 Although Phocas had been arrested in 529 as a suspected practitioner of paganism he replaced John the Cappadocian after the Nika Riots saw the destruction of the Theodosian church 44 According to John the Lydian Phocas was responsible for funding the initial construction of the building with 4 000 Roman pounds of gold but he was dismissed from office in October 532 45 44 John the Lydian wrote that Phocas had acquired the funds by moral means but Evagrius Scholasticus later wrote that the money had been obtained unjustly 46 44 According to Anthony Kaldellis both of Hagia Sophia s architects named by Procopius were associated with to the school of the pagan philosopher Ammonius of Alexandria 44 It is possible that both they and John the Lydian considered Hagia Sophia a great temple for the supreme Neoplatonist deity who manifestated through light and the sun John the Lydian describes the church as the temenos of the Great God Greek tὸ toῦ megaloy 8eoῦ Temenos romanized to tou megalou theou Temenos 45 44 Originally the exterior of the church was covered with marble veneer as indicated by remaining pieces of marble and surviving attachments for lost panels on the building s western face 47 The white marble cladding of much of the church together with gilding of some parts would have given Hagia Sophia a shimmering appearance quite different from the brick and plaster work of the modern period and would have significantly increased its visibility from the sea 47 The cathedral s interior surfaces were sheathed with polychrome marbles green and white with purple porphyry and gold mosaics The exterior was clad in stucco that was tinted yellow and red during the 19th century restorations by the Fossati architects 48 The construction is described by Procopius in On Buildings Greek Perὶ ktismatwn romanized Peri ktismatōn Latin De aedificiis 40 Columns and other marble elements were imported from throughout the Mediterranean although the columns were once thought to be spoils from cities such as Rome and Ephesus 49 Even though they were made specifically for Hagia Sophia they vary in size 50 More than ten thousand people were employed during the construction process This new church was contemporaneously recognized as a major work of architecture Outside the church was an elaborate array of monuments around the bronze plated Column of Justinian topped by an equestrian statue of the emperor which dominated the Augustaeum the open square outside the church which connected it with the Great Palace complex through the Chalke Gate At the edge of the Augustaeum was the Milion and the Regia the first stretch of Constantinople s main thoroughfare the Mese Also facing the Augustaeum were the enormous Constantinian thermae the Baths of Zeuxippus and the Justinianic civic basilica under which was the vast cistern known as the Basilica Cistern On the opposite side of Hagia Sophia was the former cathedral Hagia Irene Referring to the destruction of the Theodosian Hagia Sophia and comparing the new church with the old Procopius lauded the Justinianic building writing in De aedificiis 40 the Emperor Justinian built not long afterwards a church so finely shaped that if anyone had enquired of the Christians before the burning if it would be their wish that the church should be destroyed and one like this should take its place shewing them some sort of model of the building we now see it seems to me that they would have prayed that they might see their church destroyed forthwith in order that the building might be converted into its present form Procopius De aedificiis I 1 22 23 Upon seeing the finished building the Emperor reportedly said Salomon I have surpassed thee Medieval Greek Nenikhka se Solomwn 51 Justinian and Patriarch Menas inaugurated the new basilica on 27 December 537 5 years and 10 months after construction started with much pomp 52 53 54 Hagia Sophia was the seat of the Patriarchate of Constantinople and a principal setting for Byzantine imperial ceremonies such as coronations The basilica offered sanctuary from persecution to criminals although there was disagreement about whether Justinian had intended for murderers to be eligible for asylum 55 Basket capitals and verd antique and marble columns The basket capitals of the building are carved with monograms of the names Justinian Greek Ioystinianos romanized Ioustinianos and Thedora 8eodwra Theodṓra and their imperial titles basileys basileus and aὐgoysta augousta Earthquakes in August 553 and on 14 December 557 caused cracks in the main dome and eastern semi dome According to the Chronicle of John Malalas during a subsequent earthquake on 7 May 558 56 the eastern semi dome collapsed destroying the ambon altar and ciborium The collapse was due mainly to the excessive bearing load and to the enormous shear load of the dome which was too flat 52 These caused the deformation of the piers which sustained the dome 52 Justinian ordered an immediate restoration He entrusted it to Isidorus the Younger nephew of Isidore of Miletus who used lighter materials The entire vault had to be taken down and rebuilt 20 Byzantine feet 6 25 m or 20 5 ft higher than before giving the building its current interior height of 55 6 m 182 ft 57 Moreover Isidorus changed the dome type erecting a ribbed dome with pendentives whose diameter was between 32 7 and 33 5 m 52 Under Justinian s orders eight Corinthian columns were disassembled from Baalbek Lebanon and shipped to Constantinople around 560 58 This reconstruction which gave the church its present 6th century form was completed in 562 The poet Paul the Silentiary composed an ekphrasis or long visual poem for the re dedication of the basilica presided over by Patriarch Eutychius on 24 December 562 Paul the Silentiary s poem is conventionally known under the Latin title Descriptio Sanctae Sophiae and he was also author of another ekphrasis on the ambon of the church the Descripto Ambonis 59 60 According to the history of the patriarch Nicephorus I and the chronicler Theophanes the Confessor various liturgical vessels of the cathedral were melted down on the order of the emperor Heraclius r 610 641 after the capture of Alexandria and Roman Egypt by the Sasanian Empire during the Byzantine Sasanian War of 602 628 61 Theophanes states that these were made into gold and silver coins and a tribute was paid to the Avars 61 The Avars attacked the extramural areas of Constantinople in 623 causing the Byzantines to move the garment relic Greek ἐs8hs translit esthḗs of Mary mother of Jesus to Hagia Sophia from its usual shrine of the Church of the Theotokos at Blachernae just outside the Theodosian Walls 62 On 14 May 626 the Scholae Palatinae an elite body of soldiers protested in Hagia Sophia against a planned increase in bread prices after a stoppage of the Cura Annonae rations resulting from the loss of the grain supply from Egypt 63 The Persians under Shahrbaraz and the Avars together laid the siege of Constantinople in 626 according to the Chronicon Paschale on 2 August 626 Theodore Syncellus a deacon and presbyter of Hagia Sophia was among those who negotiated unsuccessfully with the khagan of the Avars 64 A homily attributed by existing manuscripts to Theodore Syncellus and possibly delivered on the anniversary of the event describes the translation of the Virgin s garment and its ceremonial re translation to Blachernae by the patriarch Sergius I after the threat had passed 64 65 Another eyewitness account of the Avar Persian siege was written by George of Pisidia a deacon of Hagia Sophia and an administrative official in for the patriarchate from Antioch in Pisidia 64 Both George and Theodore likely members of Sergius s literary circle attribute the defeat of the Avars to the intervention of the Theotokos a belief that strengthened in following centuries 64 Polychrome marble revetment on the wall of the gallery In 726 the emperor Leo the Isaurian issued a series of edicts against the veneration of images ordering the army to destroy all icons ushering in the period of Byzantine iconoclasm At that time all religious pictures and statues were removed from the Hagia Sophia Following a brief hiatus during the reign of Empress Irene 797 802 the iconoclasts returned Emperor Theophilus r 829 842 had two winged bronze doors with his monograms installed at the southern entrance of the church 66 The basilica suffered damage first in a great fire in 859 and again in an earthquake on 8 January 869 that caused the collapse of one of the half domes 67 Emperor Basil I ordered repair of the tympanas arches and vaults 68 In his book De caerimoniis aulae Byzantinae Book of Ceremonies the emperor Constantine VII r 913 959 wrote a detailed account of the ceremonies held in the Hagia Sophia by the emperor and the patriarch Early in the 10th century the pagan ruler of the Kievan Rus sent emissaries to his neighbors to learn about Judaism Islam and Roman and Orthodox Christianity After visiting Hagia Sophia his emissaries reported back We were led into a place where they serve their God and we did not know where we were in heaven or on earth 69 In the 940s or 950s probably around 954 or 955 after the Rus Byzantine War of 941 and the death of the Grand Prince of Kiev Igor I r 912 945 his widow Olga of Kiev regent for her infant son Sviatoslav I r 945 972 visited the emperor Constantine VII and was received as queen of the Rus in Constantinople 70 71 72 She was probably baptized in Hagia Sophia s baptistery taking the name of the reigning augusta Helena Lecapena and receiving the titles zōste patrikia and the styles of archontissa and hegemon of the Rus 71 70 Her baptism was an important step towards the Christianization of the Kievan Rus though the emperor s treatment of her visit in De caerimoniis does not mention baptism 71 70 Olga is deemed a saint and equal to the apostles Greek ἰsapostolos translit isapostolos in the Eastern Orthodox Church 73 74 According to an early 14th century source the second church in Kiev Saint Sophia s was founded in anno mundi 6460 in the Byzantine calendar or c 952 75 The name of this future cathedral of Kiev probably commemorates Olga s baptism at Hagia Sophia 75 After the great earthquake of 25 October 989 which collapsed the western dome arch Emperor Basil II asked for the Armenian architect Trdat creator of the Cathedral of Ani to direct the repairs 76 He erected again and reinforced the fallen dome arch and rebuilt the west side of the dome with 15 dome ribs 77 The extent of the damage required six years of repair and reconstruction the church was re opened on 13 May 994 At the end of the reconstruction the church s decorations were renovated including the addition of four immense paintings of cherubs a new depiction of Christ on the dome a burial cloth of Christ shown on Fridays and on the apse a new depiction of the Virgin Mary holding Jesus between the apostles Peter and Paul 78 On the great side arches were painted the prophets and the teachers of the church 78 Detail of the verd column According to the 13th century Greek historian Niketas Choniates the emperor John II Comnenus celebrated a revived Roman triumph after his victory over the Danishmendids at the siege of Kastamon in 1133 79 After proceeding through the streets on foot carrying a cross with a silver quadriga bearing the icon of the Virgin Mary the emperor participated in a ceremony at the cathedral before entering the imperial palace 80 In 1168 another triumph was held by the emperor Manuel I Comnenus again preceding with a gilded silver quadriga bearing the icon of the Virgin from the now demolished East Gate or Gate of St Barbara later the Turkish Top Kapisi lit Cannon Gate in the Propontis Wall to Hagia Sophia for a thanks giving service and then to the imperial palace 81 In 1181 the daughter of the emperor Manuel I Maria Comnena and her husband the caesar Renier of Montferrat fled to Hagia Sophia at the culmination of their dispute with the empress Maria of Antioch regent for her son the emperor Alexius II Comnenus 82 Maria Comnena and Renier occupied the cathedral with the support of the patriarch refusing the imperial administration s demands for a peaceful departure 82 According to Niketas Choniates they transformed the sacred courtyard into a military camp garrisoned the entrances to the complex with locals and mercenaries and despite the strong opposition of the patriarch made the house of prayer into a den of thieves or a well fortified and precipitous stronghold impregnable to assault while all the dwellings adjacent to Hagia Sophia and adjoining the Augusteion were demolished by Maria s men 82 A battle ensued in the Augustaion and around the Milion during which the defenders fought from the gallery of the Catechumeneia also called the Makron facing the Augusteion from which they eventually retreated and took up positions in the exonarthex of Hagia Sophia itself 82 At this point the patriarch was anxious lest the enemy troops enter the temple with unholy feet trample the holy floor and with hands defiled and dripping with blood still warm plunder the all holy dedicatory offerings 82 After a successful sally by Renier and his knights Maria requested a truce the imperial assault ceased and an amnesty was negotiated by the megas doux Andronikos Kontostephanos and the megas hetaireiarches John Doukas 82 Greek historian Niketas Choniates compared the preservation of the cathedral to the efforts made by the 1st century emperor Titus to avoid the destruction of the Second Temple during the siege of Jerusalem in the First Jewish Roman War 82 Choniates reports that in 1182 a white hawk wearing jesses was seen to fly from the east to Hagia Sophia flying three times from the building of the Thōmaites a basilica erected on the southeastern side of the Augustaion to the Palace of the Kathisma in the Great Palace where new emperors were acclaimed 83 This was supposed to presage the end of the reign of Andronicus I Comnenus r 1183 1185 83 The hexapterygon six winged angel on the north east pendentive upper left whose face was discovered and recovered by the Fossati brothers uncovered in 2009 annotations Choniates further writes that in 1203 during the Fourth Crusade the emperors Isaac II Angelus and Alexius IV Angelus stripped Hagia Sophia of all gold ornaments and silver oil lamps in order to pay off the Crusaders who had ousted Alexius III Angelus and helped Isaac return to the throne 84 Upon the subsequent Sack of Constantinople in 1204 the church was further ransacked and desecrated by the Crusaders as described by Choniates though he did not witness the events in person According to his account composed at the court of the rump Empire of Nicaea Hagia Sophia was stripped of its remaining metal ornaments its altar was smashed into pieces and a woman laden with sins sang and danced on the synthronon 85 86 87 He adds that mules and donkeys were brought into the cathedral s sanctuary to carry away the gilded silver plating of the bema the ambo and the doors and other furnishings and that one of them slipped on the marble floor and was accidentally disembowelled further contaminating the place 85 According to Ali ibn al Athir whose treatment of the Sack of Constantinople was probably dependent on a Christian source the Crusaders massacred some clerics who had surrendered to them 88 Much of the interior was damaged and would not be repaired until its return to Orthodox control in 1261 31 The sack of Hagia Sophia and Constantinople in general remained a sore point in Catholic Eastern Orthodox relations 89 During the Latin occupation of Constantinople 1204 1261 the church became a Latin Catholic cathedral Baldwin I of Constantinople r 1204 1205 was crowned emperor on 16 May 1204 in Hagia Sophia in a ceremony which closely followed Byzantine practices Enrico Dandolo the Doge of Venice who commanded the sack and invasion of the city by the Latin Crusaders in 1204 is buried inside the church probably in the upper eastern gallery In the 19th century an Italian restoration team placed a cenotaph marker frequently mistaken as being a medieval artifact near the probable location and is still visible today The original tomb was destroyed by the Ottomans during the conversion of the church into a mosque 90 Upon the capture of Constantinople in 1261 by the Empire of Nicaea and the emperor Michael VIII Palaeologus r 1261 1282 the church was in a dilapidated state In 1317 emperor Andronicus II Palaeologus r 1282 1328 ordered four new buttresses Medieval Greek Pyramidas romanized Pyramidas to be built in the eastern and northern parts of the church financing them with the inheritance of his late wife Irene of Montferrat d 1314 17 New cracks developed in the dome after the earthquake of October 1344 and several parts of the building collapsed on 19 May 1346 Repairs by architects Astras and Peralta began in 1354 67 91 On 12 December 1452 Isidore of Kiev proclaimed in Hagia Sophia the long anticipated ecclesiastical union between the western Catholic and eastern Orthodox Churches as decided at the Council of Florence and decreed by the papal bull Laetentur Caeli though it would be short lived The union was unpopular among the Byzantines who had already expelled the Patriarch of Constantinople Gregory III for his pro union stance A new patriarch was not installed until after the Ottoman conquest According to the Greek historian Doukas the Hagia Sophia was tainted by these Catholic associations and the anti union Orthodox faithful avoided the cathedral considering it to be a haunt of demons and a Hellenic temple of Roman paganism 92 Doukas also notes that after the Laetentur Caeli was proclaimed the Byzantines dispersed discontentedly to nearby venues where they drank toasts to the Hodegetria icon which had according to late Byzantine tradition interceded to save them in the former sieges of Constantinople by the Avar Khaganate and the Umayyad Caliphate 93 According to Nestor Iskander s Tale on the Taking of Tsargrad the Hagia Sophia was the focus of an alarming omen interpreted as the Holy Spirit abandoning Constantinople on 21 May 1453 in the final days of the Siege of Constantinople 94 The sky lit up illuminating the city and many people gathered and saw on the Church of the Wisdom at the top of the window a large flame of fire issuing forth It encircled the entire neck of the church for a long time The flame gathered into one its flame altered and there was an indescribable light At once it took to the sky The light itself has gone up to heaven the gates of heaven were opened the light was received and again they were closed 94 This phenomenon was perhaps St Elmo s fire induced by gunpowder smoke and unusual weather 94 The author relates that the fall of the city to Mohammadenism was foretold in an omen seen by Constantine the Great an eagle fighting with a snake which also signified that in the end Christianity will overpower Mohammedanism will receive the Seven Hills and will be enthroned in it 94 The eventual fall of Constantinople had long been predicted in apocalyptic literature 95 A reference to the destruction of a city founded on seven hills in the Book of Revelation was frequently understood to be about Constantinople and the Apocalypse of Pseudo Methodius had predicted an Ishmaelite conquest of the Roman Empire 95 In this text the Muslim armies reach the Forum Bovis before being turned back by divine intervention in later apocalyptic texts the climactic turn takes place at the Column of Theodosius closer to Hagia Sophia in others it occurs at the Column of Constantine which is closer still 95 Hagia Sophia is mentioned in a hagiography of uncertain date detailing the life of the fictional saint Andrew the Fool 96 The text is self attributed to Nicephorus a priest of Hagia Sophia and contains a description of the end time in the form of a dialogue in which the interlocutor upon being told by the saint that Constantinople will be sunk in a flood and that the waters as they gush forth will irresistibly deluge her and cover her and surrender her to the terrifying and immense sea of the abyss says some people say that the Great Church of God will not be submerged with the city but will be suspended in the air by an invisible power 96 The reply is given that When the whole city sinks into the sea how can the Great Church remain Who will need her Do you think God dwells in temples made with hands 96 The Column of Constantine however is prophesied to endure 96 Drawing of the colossal bronze imperial statue from atop the Column of Justinian 15th century From the time of Procopius in the reign of Justinian the equestrian imperial statue on the Column of Justinian in the Augustaion beside Hagia Sophia which gestured towards Asia with right hand was understood to represent the emperor holding back the threat to the Romans from the Sasanian Empire in the Roman Persian Wars while the orb or globus cruciger held in the statue s left was an expression of the global power of the Roman emperor 97 Subsequently in the Arab Byzantine wars the threat held back by the statue became the Umayyad Caliphate and later the statue was thought to be fending off the advance of the Turks 97 The identity of the emperor was often confused with that of other famous saint emperors like Theodosius the Great and Heraclius 97 The orb was frequently referred to as an apple in foreigners accounts of the city and it was interpreted in Greek folklore as a symbol of the Turks mythological homeland in Central Asia the Lone Apple Tree 97 The orb fell to the ground in 1316 and was replaced by 1325 but while it was still in place around 1412 by the time Johann Schiltberger saw the statue in 1427 the empire apple German Reichsapfel had fallen to the earth 97 An attempt to raise it again in 1435 failed and this amplified the prophecies of the city s fall 97 For the Turks the red apple Turkish kizil elma came to symbolize Constantinople itself and subsequently the military supremacy of the Islamic caliphate over the Christian empire 97 In Niccolo Barbaro s account of the fall of the city in 1453 the Justinianic monument was interpreted in the last days of the siege as representing the city s founder Constantine the Great indicating this is the way my conqueror will come 94 According to Laonicus Chalcocondyles Hagia Sophia was a refuge for the population during the city s capture 98 Despite the ill repute and empty state of Hagia Sophia after December 1452 Doukas writes that after the Theodosian Walls were breached the Byzantines took refuge there as the Turks advanced through the city All the women and men monks and nuns ran to the Great Church They both men and women were holding in their arms their infants What a spectacle That street was crowded full of human beings 98 He attributes their change of heart to a prophecy 98 What was the reason that compelled all to flee to the Great Church They had been listening for many years to some pseudo soothsayers who had declared that the city was destined to be handed over to the Turks who would enter in large numbers and would massacre the Romans as far as the Column of Constantine the Great After this an angel would descend holding his sword He would hand over the kingdom together with the sword to some insignificant poor and humble man who would happen to be standing by the Column He would say to him Take this sword and avenge the Lord s people Then the Turks would be turned back would be massacred by the pursuing Romans and would be ejected from the city and from all places in the west and the east and would be driven as far as the borders of Persia to a place called the Lone Tree That was the cause for the flight into the Great Church In one hour that famous and enormous church was filled with men and women An innumerable crowd was everywhere upstairs downstairs in the courtyards and in every conceivable place They closed the gates and stood there hoping for salvation Doukas XXXIX 18 In accordance with the traditional custom of the time Sultan Mehmed II allowed his troops and his entourage three full days of unbridled pillage and looting in the city shortly after it was captured This period saw the destruction of many Orthodox churches 99 Hagia Sophia itself was looted as the invaders believed it to contain the greatest treasures of the city 100 Shortly after the defence of the Walls of Constantinople collapsed and the victorious Ottoman troops entered the city the pillagers and looters made their way to the Hagia Sophia and battered down its doors before storming inside 101 Once the three days passed Mehmed was to claim the city s remaining contents for himself 102 103 However by the end of the first day he proclaimed that the looting should cease as he felt profound sadness when he toured the looted and enslaved city 104 102 105 Throughout the siege of Constantinople the trapped people of the city participated in the Divine Liturgy and the Prayer of the Hours at the Hagia Sophia and the church was a safe haven and a refuge for many of those who were unable to contribute to the city s defence including women children elderly the sick and the wounded 106 107 105 As they were trapped in the church the many congregants and other refugees inside became spoils of war to be divided amongst the triumphant invaders The building was desecrated and looted and those who sought shelter within the church were enslaved 100 While most of the elderly and the infirm injured and sick were killed the remainder mainly teenage males and young boys were chained and sold into slavery 101 105 Mosque 1453 1935 Edit The mihrab located in the apse where the altar used to stand pointing towards Mecca The two giant candlesticks flanking the mihrab were brought in from Ottoman Hungary by Sultan Suleiman the Magnificent Constantinople fell to the attacking Ottoman forces on 29 May 1453 Sultan Mehmed II entered the city and performed the Friday prayer and khutbah sermon in Hagia Sophia and this action marked the official conversion of Hagia Sophia into a mosque 108 The church s priests and religious personnel continued to perform Christian rites prayers and ceremonies until they were compelled to stop by the invaders 101 When Mehmed and his entourage entered the church he ordered that it be converted into a mosque immediately One of the ʿulamaʾ Islamic scholars present climbed onto the church s ambo and recited the shahada There is no god but Allah and Muhammad is his messenger thus marking the beginning of the conversion of the church into a mosque 17 109 Mehmed is reported to have taken a sword to a soldier who tried to pry up one of the paving slabs of the Proconnesian marble floor 110 As described by Western visitors before 1453 such as the Cordoban nobleman Pero Tafur 111 and the Florentine geographer Cristoforo Buondelmonti 112 the church was in a dilapidated state with several of its doors fallen from their hinges Mehmed II ordered a renovation of the building Mehmed attended the first Friday prayer in the mosque on 1 June 1453 113 Aya Sofya became the first imperial mosque of Istanbul 114 Most of the existing houses in the city and the area of the future Topkapi Palace were endowed to the corresponding waqf 17 From 1478 2 360 shops 1 300 houses 4 caravanserais 30 boza shops and 23 shops of sheep heads and trotters gave their income to the foundation 115 Through the imperial charters of 1520 AH 926 and 1547 AH 954 shops and parts of the Grand Bazaar and other markets were added to the foundation 17 Before 1481 a small minaret was erected on the southwest corner of the building above the stair tower 17 Mehmed s successor Bayezid II r 1481 1512 later built another minaret at the northeast corner 17 One of the minarets collapsed after the earthquake of 1509 17 and around the middle of the 16th century they were both replaced by two diagonally opposite minarets built at the east and west corners of the edifice 17 In 1498 Bernardo Bonsignori was the last Western visitor to Hagia Sophia to report seeing the ancient Justinianic floor shortly afterwards the floor was covered over with carpet and not seen again until the 19th century 110 In the 16th century Sultan Suleiman the Magnificent r 1520 1566 brought two colossal candlesticks from his conquest of the Kingdom of Hungary and placed them on either side of the mihrab During Suleiman s reign the mosaics above the narthex and imperial gates depicting Jesus Mary and various Byzantine emperors were covered by whitewash and plaster which were removed in 1930 under the Turkish Republic 116 better source needed Fountain Sadirvan for ritual ablutions During the reign of Selim II r 1566 1574 the building started showing signs of fatigue and was extensively strengthened with the addition of structural supports to its exterior by Ottoman architect Mimar Sinan who was also an earthquake engineer 117 In addition to strengthening the historic Byzantine structure Sinan built two additional large minarets at the western end of the building the original sultan s lodge and the turbe mausoleum of Selim II to the southeast of the building in 1576 1577 AH 984 In order to do that parts of the Patriarchate at the south corner of the building were pulled down the previous year 17 Moreover the golden crescent was mounted on the top of the dome 17 and a respect zone 35 arsin about 24 m wide was imposed around the building leading to the demolition of all houses within the perimeter 17 The turbe became the location of the tombs of 43 Ottoman princes 17 Murad III r 1574 1595 imported two large alabaster Hellenistic urns from Pergamon Bergama and placed them on two sides of the nave 17 In 1594 AH 1004 Mimar court architect Davud Aga built the turbe of Murad III where the Sultan and his valide Safiye Sultan were buried 17 The octagonal mausoleum of their son Mehmed III r 1595 1603 and his valide was built next to it in 1608 AH 1017 by royal architect Dalgic Mehmet Aĝa 118 His son Mustafa I r 1617 1618 1622 1623 converted the baptistery into his turbe 118 In 1717 under the reign of Sultan Ahmed III r 1703 1730 the crumbling plaster of the interior was renovated contributing indirectly to the preservation of many mosaics which otherwise would have been destroyed by mosque workers 118 In fact it was usual for the mosaic s tesserae believed to be talismans to be sold to visitors 118 Sultan Mahmud I ordered the restoration of the building in 1739 and added a medrese a Koranic school subsequently the library of the museum an imaret soup kitchen for distribution to the poor and a library and in 1740 he added a Sadirvan fountain for ritual ablutions thus transforming it into a kulliye or social complex At the same time a new sultan s lodge and a new mihrab were built inside citation needed Renovation of 1847 1849 Edit Calligraphy with the name of the 4th Rashidun caliph Ali bin Abi Talib one of eight medallions added in the 19th century The 19th century restoration of the Hagia Sophia was ordered by Sultan Abdulmejid I r 1823 1861 and completed between 1847 and 1849 by eight hundred workers under the supervision of the Swiss Italian architect brothers Gaspare and Giuseppe Fossati The brothers consolidated the dome with a restraining iron chain and strengthened the vaults straightened the columns and revised the decoration of the exterior and the interior of the building 119 The mosaics in the upper gallery were exposed and cleaned although many were recovered for protection against further damage 120 Eight new gigantic circular framed discs or medallions were hung from the cornice on each of the four piers and at either side of the apse and the west doors These were designed by the calligrapher Kazasker Mustafa Izzet Efendi 1801 1877 and painted with the names of Allah Muhammad the Rashidun the first four caliphs Abu Bakr Umar Uthman and Ali and the two grandsons of Muhammad Hasan and Husayn the sons of Ali The old chandeliers were replaced by new pendant ones citation needed In 1850 the architects Fossati built a new maqsura or caliphal loge in Neo Byzantine columns and an Ottoman Rococo style marble grille connecting to the royal pavilion behind the mosque 119 The new maqsura was built at the extreme east end of the northern aisle next to the north eastern pier The existing maqsura in the apse near the mihrab was demolished 119 A new entrance was constructed for the sultan the Hunkar Mahfili 119 The Fossati brothers also renovated the minbar and mihrab Outside the main building the minarets were repaired and altered so that they were of equal height 120 A clock building the Muvakkithane was built by the Fossatis for use by the muwaqqit the mosque timekeeper and a new madrasa Islamic school was constructed The Kasr i Humayun was also built under their direction 119 When the restoration was finished the mosque was re opened with a ceremony on 13 July 1849 121 An edition of lithographs from drawings made during the Fossatis work on Hagia Sophia was published in London in 1852 entitled Aya Sophia of Constantinople as Recently Restored by Order of H M The Sultan Abdulmedjid 119 Gaspare Fossati s Hagia Sophia lithographs by Louis Haghe Main western facade of Hagia Sophia seen from courtyard of the madrasa of Mahmud I Lithograph by Louis Haghe after Gaspard Fossati 1852 South eastern side seen from the Imperial Gate of the Topkapi Palace with the Fountain of Ahmed III on the left and the Sultan Ahmed Mosque in the distance Lithograph by Louis Haghe after Gaspard Fossati 1852 The imperial lodge b 1850 Gaspare Fossati s 1852 depiction of the Hagia Sophia after his and his brother s renovation Lithograph by Louis Haghe Nave before restoration facing east Nave and apse after restoration facing east Nave and entrance after restoration facing west Narthex facing north Exonarthex facing north North aisle from the entrance facing east North aisle facing west Nave and south aisle from the north aisle Northern gallery and entrance to the matroneum from the north west Southern gallery from the south west Southern gallery from the Marble Door facing west Southern gallery from the Marble Door facing eastOccupation of Istanbul 1918 1923 Edit In the aftermath of the defeat of the Ottoman Empire in World War I Constantinople was occupied by British French Italian and Greek forces On 19 January 1919 the Greek Orthodox Christian military priest Eleftherios Noufrakis performed an unauthorized Divine Liturgy in the Hagia Sophia the only such instance since the 1453 fall of Constantinople 122 The anti occupation Sultanahmet demonstrations were held next to Hagia Sophia from March to May 1919 In Greece the 500 drachma banknotes issued in 1923 featured Hagia Sophia 123 Museum 1935 2020 Edit Hagia Sophia in 1937 MG08 on the minaret of the Ayasofya Museum in Istanbul Turkey 1941 In 1935 the first Turkish President and founder of the Republic of Turkey Mustafa Kemal Ataturk transformed the building into a museum During the Second World War the minarets of the museum housed MG 08 machine guns 124 The carpet and the layer of mortar underneath were removed and marble floor decorations such as the omphalion appeared for the first time since the Fossatis restoration 125 when the white plaster covering many of the mosaics had been removed Due to neglect the condition of the structure continued to deteriorate prompting the World Monuments Fund WMF to include the Hagia Sophia in their 1996 and 1998 Watch Lists During this time period the building s copper roof had cracked causing water to leak down over the fragile frescoes and mosaics Moisture entered from below as well Rising ground water increased the level of humidity within the monument creating an unstable environment for stone and paint The WMF secured a series of grants from 1997 to 2002 for the restoration of the dome The first stage of work involved the structural stabilization and repair of the cracked roof which was undertaken with the participation of the Turkish Ministry of Culture and Tourism The second phase the preservation of the dome s interior afforded the opportunity to employ and train young Turkish conservators in the care of mosaics By 2006 the WMF project was complete though many areas of Hagia Sophia continue to require significant stability improvement restoration and conservation 126 In 2014 Hagia Sophia was the second most visited museum in Turkey attracting almost 3 3 million visitors annually 127 The interior undergoing restoration in 2007 Gli Hagia Sophia s famous cat in 2014 While use of the complex as a place of worship mosque or church was strictly prohibited 128 in 1991 the Turkish government allowed the allocation of a pavilion in the museum complex Ayasofya Muzesi Hunkar Kasri for use as a prayer room and since 2013 two of the museum s minarets had been used for voicing the call to prayer the ezan regularly 129 130 From the early 2010s several campaigns and government high officials notably Turkey s deputy prime minister Bulent Arinc in November 2013 demanded the Hagia Sophia be converted back into a mosque 131 132 133 In 2015 Pope Francis publicly acknowledged the Armenian genocide which is officially denied in Turkey In response the mufti of Ankara Mefail Hizli said he believed the Pope s remarks would accelerate the conversion of Hagia Sophia into a mosque 134 On 1 July 2016 Muslim prayers were held again in the Hagia Sophia for the first time in 85 years 135 That November a Turkish NGO the Association for the Protection of Historic Monuments and the Environment filed a lawsuit for converting the museum into a mosque 136 The court decided it should stay as a monument museum 137 better source needed In October 2016 Turkey s Directorate of Religious Affairs Diyanet appointed for the first time in 81 years a designated imam Onder Soy to the Hagia Sophia mosque Ayasofya Camii Hunkar Kasri located at the Hunkar Kasri a pavilion for the sultans private ablutions Since then the adhan has been regularly called out from the Hagia Sophia s all four minarets five times a day 129 130 138 On 13 May 2017 a large group of people organized by the Anatolia Youth Association AGD gathered in front of Hagia Sophia and prayed the morning prayer with a call for the re conversion of the museum into a mosque 139 On 21 June 2017 the Directorate of Religious Affairs Diyanet organized a special programme broadcast live by state run television TRT which included the recitation of the Quran and prayers in Hagia Sophia to mark the Laylat al Qadr 140 A small Muslim prayer room mescit in the Hagia Sophia complex 2020 Reversion to mosque 2018 present Edit Hagia Sophia 03 2023 Since 2018 Turkish president Recep Tayyip Erdogan had spoken of reverting the status of the Hagia Sophia back to a mosque a move seen to be very popularly accepted by the religious populace whom Erdogan was attempting to persuade 141 On 31 March 2018 Erdogan recited the first verse of the Quran in the Hagia Sophia dedicating the prayer to the souls of all who left us this work as inheritance especially Istanbul s conqueror strengthening the political movement to make the Hagia Sophia a mosque once again which would reverse Ataturk s measure of turning the Hagia Sophia into a secular museum 142 In March 2019 Erdogan said that he would change the status of Hagia Sophia from a museum to a mosque 143 adding that it had been a very big mistake to turn it into a museum 144 As a UNESCO World Heritage site this change would require approval from UNESCO s World Heritage Committee 145 In late 2019 Erdogan s office took over the administration and upkeep of the nearby Topkapi Palace Museum transferring responsibility for the site from the Ministry of Culture and Tourism by presidential decree 146 147 148 In 2020 Turkey s government celebrated the 567th anniversary of the Conquest of Constantinople with an Islamic prayer in Hagia Sophia Erdogan said during a televised broadcast Al Fath surah will be recited and prayers will be done at Hagia Sophia as part of conquest festival 149 In May during the anniversary events passages from the Quran were read in the Hagia Sophia Greece condemned this action while Turkey in response accused Greece of making futile and ineffective statements 150 In June the head of Turkey s Directorate of Religious Affairs Diyanet said that we would be very happy to open Hagia Sophia for worship and that if it happened we will provide our religious services as we do in all our mosques 136 On 25 June John Haldon president of the International Association of Byzantine Studies wrote an open letter to Erdogan asking that he consider the value of keeping the Aya Sofya as a museum 151 On 10 July 2020 the decision of the Council of Ministers to transform the Hagia Sophia into a museum was annulled by the Council of State decreeing that Hagia Sophia cannot be used for any other purpose than being a mosque and that the Hagia Sophia was property of the Fatih Sultan Mehmet Han Foundation The council reasoned Ottoman Sultan Mehmet II who conquered Istanbul deemed the property to be used by the public as a mosque without any fees and was not within the jurisdiction of the Parliament or a ministry council 152 153 Despite secular and global criticism Erdogan signed a decree annulling the Hagia Sophia s museum status reverting it to a mosque 154 155 The call to prayer was broadcast from the minarets shortly after the announcement of the change and rebroadcast by major Turkish news networks 155 The Hagia Sophia Museum s social media channels were taken down the same day with Erdogan announcing at a press conference that prayers themselves would be held there from 24 July 155 A presidential spokesperson said it would become a working mosque open to anyone similar to the Parisian churches Sacre Cœur and Notre Dame The spokesperson also said that the change would not affect the status of the Hagia Sophia as a UNESCO World Heritage site and that Christian icons within it would continue to be protected 141 Earlier the same day before the final decision the Turkish Finance and Treasury Minister Berat Albayrak and the Justice Minister Abdulhamit Gul expressed their expectations of opening the Hagia Sophia to worship for Muslims 156 157 Mustafa Sentop Speaker of Turkey s Grand National Assembly said a longing in the heart of our nation has ended 156 A presidential spokesperson claimed that all political parties in Turkey supported Erdogan s decision 158 however the Peoples Democratic Party had previously released a statement denouncing the decision saying decisions on human heritage cannot be made on the basis of political games played by the government 159 The mayor of Istanbul Ekrem Imamoglu said that he supports the conversion as long as it benefits Turkey adding that he felt that Hagia Sophia has been a mosque since 1453 160 Ali Babacan attacked the policy of his former ally Erdogan saying the Hagia Sophia issue has come to the agenda now only to cover up other problems 161 Orhan Pamuk Turkish novelist and Nobel laureate publicly denounced the move saying Kemal Ataturk changed Hagia Sophia from a mosque to a museum honouring all previous Greek Orthodox and Latin Catholic history making it as a sign of Turkish modern secularism 155 162 Hagia Sophia during the Allied occupation of Constantinople the RHS Georgios Averof enters the Golden Horn in 1919 Lycourgos Kogevinas el National Historical Museum Athens On 17 July Erdogan announced that the first prayers in the Hagia Sophia would be open to between 1 000 and 1 500 worshippers He said that Turkey had sovereign power over Hagia Sophia and was thus not subject to international restrictions 163 While the Hagia Sophia has now been rehallowed as a mosque the place remains open for visitors outside of prayer times Entrance is free of charge 164 On 22 July a turquoise coloured carpet was laid to prepare the mosque for worshippers Ali Erbas head of the Diyanet attended its laying 161 The omphalion was left exposed Due to the COVID 19 pandemic Erbas said Hagia Sophia would accommodate up to 1 000 worshippers at a time and asked that they bring masks a prayer rug patience and understanding 161 The mosque opened for Friday prayers on 24 July the 97th anniversary of the signature of the Treaty of Lausanne which reversed many of the territorial losses Turkey incurred after World War I s Treaty of Sevres including ending the Allies occupation of Constantinople following the victory of the Republic in the Turkish War of Independence 161 The mosaics of the Virgin and Child in the apse were covered by white drapes 162 Erbas holding a sword proclaimed during his sermon Sultan Mehmet the Conqueror dedicated this magnificent construction to believers to remain a mosque until the Day of Resurrection 162 Erdogan and some government ministers attended the midday prayers as many worshippers prayed outside at one point the security cordon was breached and dozens of people broke through police lines 162 Turkey invited foreign leaders and officials including Pope Francis for the prayers 165 It is the fourth Byzantine church converted from museum to a mosque during Erdogan s rule 166 In April 2022 the Hagia Sophia held its first Ramadan tarawih prayer in 88 years 167 International reaction Edit Days before the final decision on the conversion was made Ecumenical Patriarch Bartholomew I of Constantinople stated in a sermon that the conversion of Hagia Sophia into a mosque would disappoint millions of Christians around the world he also said that Hagia Sophia which was a vital center where East is embraced with the West would fracture these two worlds in the event of conversion 168 169 The proposed conversion was decried by other Orthodox Christian leaders the Russian Orthodox Church s Patriarch Kirill of Moscow stating that a threat to Hagia Sophia wa s a threat to all of Christian civilization 170 171 Following the Turkish government s decision UNESCO announced it deeply regret ted the conversion made without prior discussion and asked Turkey to open a dialogue without delay stating that the lack of negotiation was regrettable 172 155 UNESCO further announced that the state of conservation of Hagia Sophia would be examined at the next session of the World Heritage Committee urging Turkey to initiate dialogue without delay in order to prevent any detrimental effect on the universal value of this exceptional heritage 172 Ernesto Ottone UNESCO s Assistant Director General for Culture said It is important to avoid any implementing measure without prior discussion with UNESCO that would affect physical access to the site the structure of the buildings the site s moveable property or the site s management 172 UNESCO s statement of 10 July said these concerns were shared with the Republic of Turkey in several letters and again yesterday evening with the representative of the Turkish Delegation without a response 172 The World Council of Churches which claims to represent 500 million Christians of 350 denominations condemned the decision to convert the building into a mosque saying that would inevitably create uncertainties suspicions and mistrust the World Council of Churches urged Turkey s president Erdogan to reconsider and reverse his decision in the interests of promoting mutual understanding respect dialogue and cooperation and avoiding cultivating old animosities and divisions 173 174 175 At the recitation of the Sunday Angelus prayer at St Peter s Square on 12 July Pope Francis said My thoughts go to Istanbul I think of Santa Sophia and I am very pained Italian Penso a Santa Sofia a Istanbul e sono molto addolorato note 1 177 178 The International Association of Byzantine Studies announced that its 21st International Congress due to be held in Istanbul in 2021 will no longer be held there and is postponed to 2022 151 Abdulmejid II r 1922 24 the last Ottoman caliph passing Hagia Sophia on the way to his coronation The Abolition of the Caliphate was one of Ataturk s Reforms Josep Borrell the European Union s High Representative for Foreign Affairs and Vice President of the European Commission released a statement calling the decisions by the Council of State and Erdogan regrettable and pointing out that as a founding member of the Alliance of Civilisations Turkey has committed to the promotion of inter religious and inter cultural dialogue and to fostering of tolerance and co existence 179 According to Borrell the European Union member states twenty seven foreign ministers condemned the Turkish decision to convert such an emblematic monument as the Hagia Sophia at meeting on 13 July saying it will inevitably fuel the mistrust promote renewed division between religious communities and undermine our efforts at dialog and cooperation and that there was a broad support to call on the Turkish authorities to urgently reconsider and reverse this decision 180 181 Greece denounced the conversion and considered it a breach of the UNESCO World Heritage titling 141 Greek culture minister Lina Mendoni called it an open provocation to the civilised world which absolutely confirms that there is no independent justice in Erdogan s Turkey and that his Turkish nationalism takes his country back six centuries 182 Greece and Cyprus called for EU sanctions on Turkey 183 Morgan Ortagus the spokesperson for the United States Department of State noted We are disappointed by the decision by the government of Turkey to change the status of the Hagia Sophia 182 Jean Yves Le Drian foreign minister of France said his country deplores the move saying these decisions cast doubt on one of the most symbolic acts of modern and secular Turkey 175 Vladimir Dzhabarov deputy head of the foreign affairs committee of the Russian Federation Council said that it will not do anything for the Muslim world It does not bring nations together but on the contrary brings them into collision and calling the move a mistake 182 The former deputy prime minister of Italy Matteo Salvini held a demonstration in protest outside the Turkish consulate in Milan calling for all plans for accession of Turkey to the European Union to be terminated once and for all 184 In East Jerusalem a protest was held outside the Turkish consulate on 13 July with the burning of a Turkish flag and the display of the Greek flag and flag of the Greek Orthodox Church 185 In a statement the Turkish foreign ministry condemned the burning of the flag saying nobody can disrespect or encroach our glorious flag 186 Ersin Tatar prime minister of the Turkish Republic of Northern Cyprus which is recognized only by Turkey welcomed the decision calling it sound and pleasing 187 182 He further criticized the government of Cyprus claiming that the Greek Cypriot administration who burned down our mosques should not have a say in this 187 Through a spokesman the Foreign Ministry of Iran welcomed the change saying the decision was an issue that should be considered as part of Turkey s national sovereignty and Turkey s internal affair 188 Sergei Vershinin deputy foreign minister of Russia said that the matter was of one of internal affairs in which of course neither we nor others should interfere 189 190 The Arab Maghreb Union was supportive 191 Ekrema Sabri imam of the al Aqsa Mosque and Ahmed bin Hamad al Khalili grand mufti of Oman both congratulated Turkey on the move 191 The Muslim Brotherhood was also in favour of the news 191 A spokesman for the Palestinian Islamist movement Hamas called the verdict a proud moment for all Muslims 192 Pakistani politician Chaudhry Pervaiz Elahi of the Pakistan Muslim League Q welcomed the ruling claiming it was not only in accordance with the wishes of the people of Turkey but the entire Muslim world 193 The Muslim Judicial Council group in South Africa praised the move calling it a historic turning point 194 In Nouakchott capital of Mauritania there were prayers and celebrations topped by the sacrifice of a camel 195 On the other hand Shawki Allam grand mufti of Egypt ruled that conversion of the Hagia Sophia to a mosque is impermissible 196 When President Erdogan announced that the first Muslim prayers would be held inside the building on 24 July he added that like all our mosques the doors of Hagia Sophia will be wide open to locals and foreigners Muslims and non Muslims Presidential spokesman Ibrahim Kalin said that the icons and mosaics of the building would be preserved and that in regards to the arguments of secularism religious tolerance and coexistence there are more than four hundred churches and synagogues open in Turkey today 197 Omer Celik spokesman for the ruling Justice and Development Party AKP announced on 13 July that entry to Hagia Sophia would be free of charge and open to all visitors outside prayer times during which Christian imagery in the building s mosaics would be covered by curtains or lasers 184 In response to the criticisms of Pope Francis Celik said that the papacy was responsible for the greatest disrespect done to the site during the 13th century Latin Catholic Fourth Crusade s sack of Constantinople and the Latin Empire during which the cathedral was pillaged 184 The Turkish foreign minister Mevlut Cavusoglu told TRT Haber on 13 July that the government was surprised at the reaction of UNESCO saying that We have to protect our ancestors heritage The function can be this way or that way it does not matter 198 On 14 July the prime minister of Greece Kyriakos Mitsotakis said his government was considering its response at all levels to what he called Turkey s unnecessary petty initiative and that with this backward action Turkey is opting to sever links with western world and its values 199 In relation to both Hagia Sophia and the Cyprus Turkey maritime zones dispute Mitsotakis called for European sanctions against Turkey referring to it as a regional troublemaker and which is evolving into a threat to the stability of the whole south east Mediterranean region 199 Dora Bakoyannis Greek former foreign minister said Turkey s actions had crossed the Rubicon distancing itself from the West 200 On the day of the building s re opening Mitsotakis called the re conversion evidence of Turkey s weakness rather than a show of power 162 Armenia s Foreign Ministry expressed deep concern about the move adding that it brought to a close Hagia Sophia s symbolism of cooperation and unity of humankind instead of clash of civilizations 201 Catholicos Karekin II the head of the Armenian Apostolic Church said the move violat ed the rights of national religious minorities in Turkey 202 Sahak II Mashalian the Armenian Patriarch of Constantinople perceived as loyal to the Turkish government endorsed the decision to convert the museum into a mosque He said I believe that believers praying suits better the spirit of the temple instead of curious tourists running around to take pictures 203 In July 2021 UNESCO asked for an updated report on the state of conservation and expressed grave concern There were also some concerns about the future of its World Heritage status 204 Turkey responded that the changes had no negative impact on UNESCO standards and the criticism is biased and political 205 Architecture Edit a Plan of the gallery upper half b Plan of the ground floor lower half Hagia Sophia is one of the greatest surviving examples of Byzantine architecture 6 Its interior is decorated with mosaics marble pillars and coverings of great artistic value Justinian had overseen the completion of the greatest cathedral ever built up to that time and it was to remain the largest cathedral for 1 000 years until the completion of the cathedral in Seville in Spain 206 The Hagia Sophia uses masonry construction The structure has brick and mortar joints that are 1 5 times the width of the bricks The mortar joints are composed of a combination of sand and minute ceramic pieces distributed evenly throughout the mortar joints This combination of sand and potsherds was often used in Roman concrete a predecessor to modern concrete A considerable amount of iron was used as well in the form of cramps and ties 207 Justinian s basilica was at once the culminating architectural achievement of late antiquity and the first masterpiece of Byzantine architecture Its influence both architecturally and liturgically was widespread and enduring in the Eastern Christianity Western Christianity and Islam alike 208 209 Cutaway isometric projection The vast interior has a complex structure The nave is covered by a central dome which at its maximum is 55 6 m 182 ft 5 in from floor level and rests on an arcade of 40 arched windows Repairs to its structure have left the dome somewhat elliptical with the diameter varying between 31 24 and 30 86 m 102 ft 6 in and 101 ft 3 in 210 At the western entrance and eastern liturgical side there are arched openings extended by half domes of identical diameter to the central dome carried on smaller semi domed exedrae a hierarchy of dome headed elements built up to create a vast oblong interior crowned by the central dome with a clear span of 76 2 m 250 ft 6 The geometric conception is based on mathematical formulas of Heron of Alexandria It avoids use of irrational numbers for the constructionThe theories of Hero of Alexandria a Hellenistic mathematician of the 1st century AD may have been utilized to address the challenges presented by building such an expansive dome over so large a space 211 Svenshon and Stiffel proposed that the architects used Hero s proposed values for constructing vaults The square measurements were calculated using the side and diagonal number progression which results in squares defined by the numbers 12 and 17 wherein 12 defines the side of the square and 17 its diagonal which have been used as standard values as early as in cuneiform Babylonian texts 212 Each of the four sides of the great square Hagia Sophia is approximately 31 m long 213 and it was previously thought that this was the equivalent of 100 Byzantine feet 212 Svenshon suggested that the size of the side of the central square of Hagia Sophia is not 100 Byzantine feet but instead 99 feet This measurement is not only rational but it is also embedded in the system of the side and diagonal number progression 70 99 and therefore a usable value by the applied mathematics of antiquity It gives a diagonal of 140 which is manageable for constructing a huge dome like that of the Hagia Sophia 214 Floor Edit The Omphalion a marble section of the floor in Hagia Sophia is the place where Byzantine emperors have been crowned The stone floor of the Hagia Sophia dates from the 6th century The stone floor of Hagia Sophia dates from the 6th century After the first collapse of the vault the broken dome was left in situ on the original Justinianic floor and a new floor was laid above the rubble when the dome was rebuilt in 558 215 From the installation of this second Justinianic floor the floor became part of the liturgy with significant locations and spaces demarcated in various ways using different coloured stones and marbles 215 The floor is predominantly made up of Proconnesian marble quarried on Proconnesus Marmara Island in the Propontis Sea of Marmara This was the main white marble used in the monuments of Constantinople Other parts of the floor like the Thessalian verd antique marble were quarried in Thessaly in Roman Greece The Thessalian verd antique bands across the nave floor were often likened to rivers 216 The floor was praised by numerous authors and repeatedly compared to a sea 110 The Justinianic poet Paul the Silentiary likened the ambo and the solea connecting it to the sanctuary with an island in a sea with the sanctuary itself a harbour 110 The 9th century Narratio writes of it as like the sea or the flowing waters of a river 110 Michael the Deacon in the 12th century also described the floor as a sea in which the ambo and other liturgical furniture stood as islands 110 During the 15th century conquest of Constantinople the Ottoman caliph Mehmed is said to have ascended to the dome and the galleries in order to admire the floor which according to Tursun Beg resembled a sea in a storm or a petrified sea 110 Other Ottoman era authors also praised the floor Tacizade Cafer Celebi compared it to waves of marble 110 The floor was hidden beneath a carpet on 22 July 2020 161 Narthex and portals EditThe Imperial Gate or Imperial Door was the main entrance between the exo and esonarthex and it was originally exclusively used by the emperor 217 218 A long ramp from the northern part of the outer narthex leads up to the upper gallery citation needed West side of the upper gallery Upper gallery Edit The upper gallery or matroneum is horseshoe shaped it encloses the nave on three sides and is interrupted by the apse Several mosaics are preserved in the upper gallery an area traditionally reserved for the Empress and her court The best preserved mosaics are located in the southern part of the gallery Slope leading to the upper gallery in the Hagia Sophia The northern first floor gallery contains runic graffiti believed to have been left by members of the Varangian Guard 219 Structural damage caused by natural disasters is visible on the Hagia Sophia s exterior surface To ensure that the Hagia Sophia did not sustain any damage on the interior of the building studies have been conducted using ground penetrating radar within the gallery of the Hagia Sophia With the use of ground penetrating radar GPR teams discovered weak zones within the Hagia Sophia s gallery and also concluded that the curvature of the vault dome has been shifted out of proportion compared to its original angular orientation 220 Dome Edit The dome of Hagia Sophia has spurred particular interest for many art historians architects and engineers because of the innovative way the original architects envisioned it The dome is carried on four spherical triangular pendentives making the Hagia Sophia one of the first large scale uses of this element The pendentives are the corners of the square base of the dome and they curve upwards into the dome to support it thus restraining the lateral forces of the dome and allowing its weight to flow downwards 221 222 The main dome of the Hagia Sophia was the largest pendentive dome in the world until the completion of St Peter s Basilica and it has a much lower height than any other dome of such a large diameter The great dome at the Hagia Sophia is 32 6 meters one hundred and seven feet in diameter and is only 0 61 meters two feet thick The main building materials for the original Hagia Sophia were brick and mortar Brick aggregate was used to make roofs easier to construct The aggregate weighs 2402 77 kilograms per cubic meter 150 pounds per cubic foot an average weight of masonry construction at the time Due to the materials plasticity it was chosen over cut stone due to the fact that aggregate can be used over a longer distance 223 According to Rowland Mainstone it is unlikely that the vaulting shell is anywhere more than one normal brick in thickness 224 The weight of the dome remained a problem for most of the building s existence The original cupola collapsed entirely after the earthquake of 558 in 563 a new dome was built by Isidore the Younger a nephew of Isidore of Miletus Unlike the original this included 40 ribs and was raised 6 1 meters 20 feet in order to lower the lateral forces on the church walls A larger section of the second dome collapsed as well over two episodes so that as of 2021 only two sections of the present dome the north and south sides are from the 562 reconstructions Of the whole dome s 40 ribs the surviving north section contains eight ribs while the south section includes six ribs 225 Although this design stabilizes the dome and the surrounding walls and arches the actual construction of the walls of Hagia Sophia weakened the overall structure The bricklayers used more mortar than brick which is more effective if the mortar was allowed to settle as the building would have been more flexible however the builders did not allow the mortar to cure before they began the next layer When the dome was erected its weight caused the walls to lean outward because of the wet mortar underneath When Isidore the Younger rebuilt the fallen cupola he had first to build up the interior of the walls to make them vertical again Additionally the architect raised the height of the rebuilt dome by approximately 6 m 20 ft so that the lateral forces would not be as strong and its weight would be transmitted more effectively down into the walls Moreover he shaped the new cupola like a scalloped shell or the inside of an umbrella with ribs that extend from the top down to the base These ribs allow the weight of the dome to flow between the windows down the pendentives and ultimately to the foundation 226 Hagia Sophia is famous for the light that reflects everywhere in the interior of the nave giving the dome the appearance of hovering above This effect was achieved by inserting forty windows around the base of the original structure Moreover the insertion of the windows in the dome structure reduced its weight 226 Buttresses Edit Numerous buttresses have been added throughout the centuries The flying buttresses to the west of the building although thought to have been constructed by the Crusaders upon their visit to Constantinople were actually built during the Byzantine era This shows that the Romans had prior knowledge of flying buttresses which can also be seen at in Greece at the Rotunda of Galerius in Thessaloniki at the monastery of Hosios Loukas in Boeotia and in Italy at the octagonal basilica of San Vitale in Ravenna 226 Other buttresses were constructed during the Ottoman times under the guidance of the architect Sinan A total of 24 buttresses were added 227 Minarets Edit Minarets of Hagia Sophia The minarets were an Ottoman addition and not part of the original church s Byzantine design They were built for notification of invitations for prayers adhan and announcements Mehmed had built a wooden minaret over one of the half domes soon after Hagia Sophia s conversion from a cathedral to a mosque This minaret does not exist today One of the minarets at southeast was built from red brick and can be dated back from the reign of Mehmed or his successor Beyazid II The other three were built from white limestone and sandstone of which the slender northeast column was erected by Bayezid II and the two identical larger minarets to the west were erected by Selim II and designed by the famous Ottoman architect Mimar Sinan Both are 60 m 200 ft in height and their thick and massive patterns complete Hagia Sophia s main structure Many ornaments and details were added to these minarets on repairs during the 15th 16th and 19th centuries which reflect each period s characteristics and ideals 228 229 Notable elements and decorations EditOriginally under Justinian s reign the interior decorations consisted of abstract designs on marble slabs on the walls and floors as well as mosaics on the curving vaults Of these mosaics the two archangels Gabriel and Michael are still visible in the spandrels corners of the bema There were already a few figurative decorations as attested by the late 6th century ekphrasis of Paul the Silentiary the Description of Hagia Sophia The spandrels of the gallery are faced in inlaid thin slabs opus sectile showing patterns and figures of flowers and birds in precisely cut pieces of white marble set against a background of black marble In later stages figurative mosaics were added which were destroyed during the iconoclastic controversy 726 843 Present mosaics are from the post iconoclastic period Apart from the mosaics many figurative decorations were added during the second half of the 9th century an image of Christ in the central dome Eastern Orthodox saints prophets and Church Fathers in the tympana below historical figures connected with this church such as Patriarch Ignatius and some scenes from the Gospels in the galleries Basil II let artists paint a giant six winged seraph on each of the four pendentives 78 The Ottomans covered their faces with golden stars 78 but in 2009 one of them was restored to its original state 230 The Loge of the Empress The columns are made of green Thessalian stone Verd antique columns and disc in the empress s loggia Lustration urn brought from Pergamon by Murad III Carved from a single block of marble in the 2nd century BC Marble Door The wishing columnLoggia of the Empress Edit The loggia of the empress is located in the centre of the gallery of the Hagia Sophia above the Imperial Gate and directly opposite the apse From this matroneum women s gallery the empress and the court ladies would watch the proceedings down below A green stone disc of verd antique marks the spot where the throne of the empress stood 231 232 Lustration urns Edit Two huge marble lustration ritual purification urns were brought from Pergamon during the reign of Sultan Murad III They are from the Hellenistic period and carved from single blocks of marble 17 Marble Door Edit The Marble Door inside the Hagia Sophia is located in the southern upper enclosure or gallery It was used by the participants in synods who entered and left the meeting chamber through this door It is said by whom that each side is symbolic and that one side represents heaven while the other represents hell Its panels are covered in fruits and fish motifs The door opens into a space that was used as a venue for solemn meetings and important resolutions of patriarchate officials 233 The Nice Door Edit The Nice Door is the oldest architectural element found in the Hagia Sophia dating back to the 2nd century BC The decorations are of reliefs of geometric shapes as well as plants that are believed to have come from a pagan temple in Tarsus in Cilicia part of the Cibyrrhaeot Theme in modern day Mersin Province in south eastern Turkey It was incorporated into the building by Emperor Theophilos in 838 where it is placed in the south exit in the inner narthex 234 Imperial Gate Edit The Imperial Gate is the door that was used solely by the Emperor and his personal bodyguard and retinue 218 It is the largest door in the Hagia Sophia and has been dated to the 6th century It is about 7 meters long and Byzantine sources say it was made with wood from Noah s Ark 235 In April 2022 the door was vandalised by unknown assailant s The incident became known after the Association of Art Historians published a photo with the destruction Greek Foreign Ministry condemned the incident while Turkish officials claimed that a citizen has taken a piece of the door and started an investigation 236 Wishing column Edit At the northwest of the building there is a column with a hole in the middle covered by bronze plates This column goes by different names the perspiring or sweating column the crying column or the wishing column Legend states that it has been moist since the appearance of Gregory the Wonderworker near the column in 1200 It is believed that touching the moisture cures many illnesses 237 238 Mosaics Edit Ceiling decoration showing original Christian cross still visible through the later aniconic decoration The first mosaics which adorned the church were completed during the reign of Justin II 239 Many of the non figurative mosaics in the church come from this period Most of the mosaics however were created in the 10th and 12th centuries 240 better source needed following the periods of Byzantine Iconoclasm During the Sack of Constantinople in 1204 the Latin Crusaders vandalized valuable items in every important Byzantine structure of the city including the golden mosaics of the Hagia Sophia Many of these items were shipped to Venice whose Doge Enrico Dandolo had organized the invasion and sack of Constantinople after an agreement with Prince Alexios Angelos the son of a deposed Byzantine emperor 19th century restoration Edit Following the building s conversion into a mosque in 1453 many of its mosaics were covered with plaster due to Islam s ban on representational imagery This process was not completed at once and reports exist from the 17th century in which travellers note that they could still see Christian images in the former church In 1847 1849 the building was restored by two Swiss Italian Fossati brothers Gaspare and Giuseppe and Sultan Abdulmejid I allowed them to also document any mosaics they might discover during this process which were later archived in Swiss libraries 241 better source needed This work did not include repairing the mosaics and after recording the details about an image the Fossatis painted it over again The Fossatis restored the mosaics of the two hexapteryga singular Greek ἑ3apterygon pr hexapterygon six winged angel it is uncertain whether they are seraphim or cherubim located on the two east pendentives and covered their faces again before the end of the restoration 242 The other two mosaics placed on the west pendentives are copies in paint created by the Fossatis since they could find no surviving remains of them 242 As in this case the architects reproduced in paint damaged decorative mosaic patterns sometimes redesigning them in the process The Fossati records are the primary sources about a number of mosaic images now believed to have been completely or partially destroyed in the 1894 Istanbul earthquake These include a mosaic over a now unidentified Door of the Poor a large image of a jewel encrusted cross and many images of angels saints patriarchs and church fathers Most of the missing images were located in the building s two tympana One mosaic they documented is Christ Pantocrator in a circle which would indicate it to be a ceiling mosaic possibly even of the main dome which was later covered and painted over with Islamic calligraphy that expounds God as the light of the universe The Fossatis drawings of the Hagia Sophia mosaics are today kept in the Archive of the Canton of Ticino 243 Imperial gate mosaic Southwestern entrance mosaic Apse mosaic of the Virgin Mary and Child The Empress Zoe mosaic The Comnenus mosaic The Deesis mosaic Mosaic in the northern tympanum depicting Saint John Chrysostom Detail of the Christ Pantocrator mosaic also known as the Deesis mosaic a Seraph angel 13th century CE Ceiling mosaics Hagia Sophia Istanbul Turkey 20th century restoration Edit Many mosaics were uncovered in the 1930s by a team from the Byzantine Institute of America led by Thomas Whittemore The team chose to let a number of simple cross images remain covered by plaster but uncovered all major mosaics found Because of its long history as both a church and a mosque a particular challenge arises in the restoration process Christian iconographic mosaics can be uncovered but often at the expense of important and historic Islamic art Restorers have attempted to maintain a balance between both Christian and Islamic cultures In particular much controversy rests upon whether the Islamic calligraphy on the dome of the cathedral should be removed in order to permit the underlying Pantocrator mosaic of Christ as Master of the World to be exhibited assuming the mosaic still exists 244 The Hagia Sophia has been a victim of natural disasters that have caused deterioration to the buildings structure and walls The deterioration of the Hagia Sophia s walls can be directly attributed to salt crystallization The crystallization of salt is due to an intrusion of rainwater that causes the Hagia Sophia s deteriorating inner and outer walls Diverting excess rainwater is the main solution to the deteriorating walls at the Hagia Sophia 245 Built between 532 and 537 a subsurface structure under the Hagia Sophia has been under investigation using LaCoste Romberg gravimeters to determine the depth of the subsurface structure and to discover other hidden cavities beneath the Hagia Sophia The hidden cavities have also acted as a support system against earthquakes With these findings using the LaCoste Romberg gravimeters it was also discovered that the Hagia Sophia s foundation is built on a slope of natural rock 246 Imperial Gate mosaic Edit The Imperial Gate mosaic is located in the tympanum above that gate which was used only by the emperors when entering the church Based on style analysis it has been dated to the late 9th or early 10th century The emperor with a nimbus or halo could possibly represent emperor Leo VI the Wise or his son Constantine VII Porphyrogenitus bowing down before Christ Pantocrator seated on a jewelled throne giving his blessing and holding in his left hand an open book 247 The text on the book reads Peace be with you John 20 19 20 26 and I am the light of the world John 8 12 On each side of Christ s shoulders is a circular medallion with busts on his left the Archangel Gabriel holding a staff on his right his mother Mary 248 Southwestern entrance mosaic Edit The southwestern entrance mosaic situated in the tympanum of the southwestern entrance dates from the reign of Basil II 249 It was rediscovered during the restorations of 1849 by the Fossatis The Virgin sits on a throne without a back her feet resting on a pedestal embellished with precious stones The Christ Child sits on her lap giving his blessing and holding a scroll in his left hand On her left side stands emperor Constantine in ceremonial attire presenting a model of the city to Mary The inscription next to him says Great emperor Constantine of the Saints On her right side stands emperor Justinian I offering a model of the Hagia Sophia The medallions on both sides of the Virgin s head carry the nomina sacra MP and 8Y abbreviations of the Greek Mhthr toy 8eoῦ romanized Meter Theou lit Mother of God 250 The composition of the figure of the Virgin enthroned was probably copied from the mosaic inside the semi dome of the apse inside the liturgical space 251 Apse mosaics Edit The mosaic in the semi dome above the apse at the east end shows Mary mother of Jesus holding the Christ Child and seated on a jewelled thokos backless throne 251 Since its rediscovery after a period of concealment in the Ottoman era it has become one of the foremost monuments of Byzantium 251 The infant Jesus s garment is depicted with golden tesserae Guillaume Joseph Grelot fr who had travelled to Constantinople in 1672 engraved and in 1680 published in Paris an image of the interior of Hagia Sophia which shows the apse mosaic indistinctly 251 Together with a picture by Cornelius Loos drawn in 1710 these images are early attestations of the mosiac before it was covered towards the end of the 18th century 251 The mosaic of the Virgin and Child was rediscovered during the restorations of the Fossati brothers in 1847 1848 and revealed by the restoration of Thomas Whittemore in 1935 1939 251 It was studied again in 1964 with the aid of scaffolding 251 252 It is not known when this mosaic was installed 251 According to Cyril Mango the mosaic is a curious reflection on how little we know about Byzantine art 253 The work is generally believed to date from after the end of Byzantine Iconoclasm and usually dated to the patriarchate of Photius I r 858 867 877 886 and the time of the emperors Michael III r 842 867 and Basil I r 867 886 251 Most specifically the mosaic has been connected with a surviving homily known to have been written and delivered by Photius in the cathedral on 29 March 867 251 254 255 256 257 Other scholars have favoured earlier or later dates for the present mosaic or its composition Nikolaos Oikonomides pointed out that Photius s homily refers to standing portrait of the Theotokos a Hodegetria while the present mosaic shows her seated 258 Likewise a biography of the patriarch Isidore I r 1347 1350 by his successor Philotheus I r 1353 1354 1364 1376 composed before 1363 describes Isidore seeing a standing image of the Virgin at Epiphany in 1347 251 Serious damage was done to the building by earthquakes in the 14th century and it is possible that a standing image of the Virgin that existed in Photius s time was lost in the earthquake of 1346 in which the eastern end of Hagia Sophia was partly destroyed 259 251 This interpretation supposes that the present mosaic of the Virgin and Child enthroned is of the late 14th century a time in which beginning with Nilus of Constantinople r 1380 1388 the patriarchs of Constantinople began to have official seals depicting the Theotokos enthroned on a thokos 260 251 Still other scholars have proposed an earlier date than the later 9th century According to George Galavaris the mosaic seen by Photius was a Hodegetria portrait which after the earthquake of 989 was replaced by the present image not later than the early 11th century 260 259 According to Oikonomides however the image in fact dates to before the Triumph of Orthodoxy having been completed c 787 797 during the iconodule interlude between the First Iconoclast 726 787 and the Second Iconoclast 814 842 periods 258 Having been plastered over in the Second Iconoclasm Oikonomides argues a new standing image of the Virgin Hodegetria was created above the older mosaic in 867 which then fell off in the earthquakes of the 1340s and revealed again the late 8th century image of the Virgin enthroned 258 More recently analysis of a hexaptych menologion icon panel from Saint Catherine s Monastery at Mount Sinai has determined that the panel showing numerous scenes from the life of the Virgin and other theologically significant iconic representations contains an image at the centre very similar to that in Hagia Sophia 251 The image is labelled in Greek merely as Mhthr 8eoῦ romanized Meter Theou lit Mother of God but in the Georgian language the inscription reveals the image is labelled of the semi dome of Hagia Sophia 251 This image is therefore the oldest depiction of the apse mosaic known and demonstrates that the apse mosaic s appearance was similar to the present day mosaic in the late 11th or early 12th centuries when the hexaptych was inscribed in Georgian by a Georgian monk which rules out a 14th century date for the mosaic 251 The portraits of the archangels Gabriel and Michael largely destroyed in the bema of the arch also date from the 9th century The mosaics are set against the original golden background of the 6th century These mosaics were believed to be a reconstruction of the mosaics of the 6th century that were previously destroyed during the iconoclastic era by the Byzantines of that time as represented in the inaugural sermon by the patriarch Photios However no record of figurative decoration of Hagia Sophia exists before this time 261 Emperor Alexander mosaic Edit The Emperor Alexander mosaic is not easy to find for the first time visitor located on the second floor in a dark corner of the ceiling It depicts the emperor Alexander in full regalia holding a scroll in his right hand and a globus cruciger in his left A drawing by the Fossatis showed that the mosaic survived until 1849 and that Thomas Whittemore founder of the Byzantine Institute of America who was granted permission to preserve the mosaics assumed that it had been destroyed in the earthquake of 1894 Eight years after his death the mosaic was discovered in 1958 largely through the researches of Robert Van Nice Unlike most of the other mosaics in Hagia Sophia which had been covered over by ordinary plaster the Alexander mosaic was simply painted over and reflected the surrounding mosaic patterns and thus was well hidden It was duly cleaned by the Byzantine Institute s successor to Whittemore Paul A Underwood 262 263 Empress Zoe mosaic Edit The Empress Zoe mosaic on the eastern wall of the southern gallery dates from the 11th century Christ Pantocrator clad in the dark blue robe as is the custom in Byzantine art is seated in the middle against a golden background giving his blessing with the right hand and holding the Bible in his left hand On either side of his head are the nomina sacra IC and XC meaning Iesous Christos He is flanked by Constantine IX Monomachus and Empress Zoe both in ceremonial costumes He is offering a purse as a symbol of donation he made to the church while she is holding a scroll symbol of the donations she made The inscription over the head of the emperor says Constantine pious emperor in Christ the God king of the Romans Monomachus The inscription over the head of the empress reads as follows Zoe the very pious Augusta The previous heads have been scraped off and replaced by the three present ones Perhaps the earlier mosaic showed her first husband Romanus III Argyrus or her second husband Michael IV Another theory is that this mosaic was made for an earlier emperor and empress with their heads changed into the present ones 264 Comnenus mosaic Edit The Comnenus mosaic also located on the eastern wall of the southern gallery dates from 1122 The Virgin Mary is standing in the middle depicted as usual in Byzantine art in a dark blue gown She holds the Christ Child on her lap He gives his blessing with his right hand while holding a scroll in his left hand On her right side stands emperor John II Comnenus represented in a garb embellished with precious stones He holds a purse symbol of an imperial donation to the church his wife the empress Irene of Hungary stands on the left side of the Virgin wearing ceremonial garments and offering a document Their eldest son Alexius Comnenus is represented on an adjacent pilaster He is shown as a beardless youth probably representing his appearance at his coronation aged seventeen In this panel one can already see a difference with the Empress Zoe mosaic that is one century older There is a more realistic expression in the portraits instead of an idealized representation The Empress Irene born Piroska daughter of Ladislaus I of Hungary is shown with plaited blond hair rosy cheeks and grey eyes revealing her Hungarian descent The emperor is depicted in a dignified manner 265 Deesis mosaic Edit The Deesis mosaic Dehsis Entreaty probably dates from 1261 It was commissioned to mark the end of 57 years of Latin Catholic use and the return to the Eastern Orthodox faith It is the third panel situated in the imperial enclosure of the upper galleries It is widely considered the finest in Hagia Sophia because of the softness of the features the humane expressions and the tones of the mosaic The style is close to that of the Italian painters of the late 13th or early 14th century such as Duccio In this panel the Virgin Mary and John the Baptist Ioannes Prodromos both shown in three quarters profile are imploring the intercession of Christ Pantocrator for humanity on Judgment Day The bottom part of this mosaic is badly deteriorated 266 This mosaic is considered as the beginning of a renaissance in Byzantine pictorial art 267 Northern tympanum mosaics Edit The northern tympanum mosaics feature various saints They have been able to survive due to their high and inaccessible location They depict Patriarchs of Constantinople John Chrysostom and Ignatios of Constantinople standing clothed in white robes with crosses and holding richly jewelled Bibles The figures of each patriarch revered as saints are identifiable by labels in Greek The other mosaics in the other tympana have not survived probably due to the frequent earthquakes as opposed to any deliberate destruction by the Ottoman conquerors 268 Dome mosaic Edit The dome was decorated with four non identical figures of the six winged angels which protect the Throne of God it is uncertain whether they are seraphim or cherubim The mosaics survive in the eastern part of the dome but since the ones on the western side were damaged during the Byzantine period they have been renewed as frescoes During the Ottoman period each seraph s or cherub s face was covered with metallic lids in the shape of stars but these were removed to reveal the faces during renovations in 2009 269 Other burials EditMustafa I in the courtyard Enrico DandoloGallery Edit Detail of the columns Detail of the columns Six patriarchs mosaic in the southern tympanum as drawn by the Fossati brothers Moasics as drawn by the Fossati brothers Guillaume Joseph Grelot fr s engraving 1672 looking east and showing the apse mosaic Guillaume Joseph Grelot fr s engraving 1672 looking west Interior of the Hagia Sophia by John Singer Sargent 1891 Photograph by Sebah amp Joaillier c 1900 1910 Watercolour of the interior by Philippe Chaperon 1893 Detail of relief on the Marble Door Imperial Gate from the nave 19th century cenotaph of Enrico Dandolo Doge of Venice and commander of the 1204 Sack of Constantinople Ambigram NIPSONANOMHMATAMHMONANOPSIN Wash your sins not only the face inscribed upon a holy water font Gate of the kulliye by John Frederick Lewis 1838 Fountain of Ahmed III from the gate of the kulliye by John Frederick Lewis 1838 Southern side of Hagia Sophia looking east by John Frederick Lewis 1838 From Verhandeling van de godsdienst der Mahometaanen by Adriaan Reland 1719 Hagia Sophia from the south west 1914 Hagia Sophia in the snow December 2015 Maschinengewehr 08 mounted on a minaret during World War IIWorks influenced by the Hagia Sophia Edit The Church of Saint Sava in Belgrade has been modelled after Hagia Sophia using its primary square and the size of its dome Interior of the Church of Saint Sava Many religious buildings have been modeled on the Hagia Sophia s core structure of a large central dome resting on pendentives and buttressed by two semi domes Byzantine churches modeled on the Hagia Sophia include the Hagia Sophia in Thessaloniki Greece as well as the Hagia Irene which was remodeled to have a dome similar to that Hagia Sophia during the reign of Justinian Several mosques commissioned by the Ottoman dynasty have similar measurements to the Hagia Sophia including the Suleymaniye Mosque and the Bayezid II Mosque 270 271 Ottoman architects preferred to surround the central dome with four semi domes rather than two 272 There are four semi domes on the Sultan Ahmed Mosque the Fatih Mosque 208 and the New Mosque Istanbul As in the original plan of the Hagia Sophia many of these mosques are also entered through a colonnaded courtyard although the courtyard of the Hagia Sophia no longer exists Neo Byzantine churches modeled on the Hagia Sophia include the Kronstadt Naval Cathedral Holy Trinity Cathedral Sibiu 273 and Poti Cathedral which closely replicate the internal geometry of the Hagia Sophia The interior of the Kronstadt Naval Cathedral is nearly identical to the Hagia Sophia The marble revetment also closely mimics the source work Like Ottoman mosques many churches based on the Hagia Sophia include four semi domes rather than two such as the Church of Saint Sava in Belgrade 274 275 Several churches combine the layout of the Hagia Sophia with a Latin cross plan One such church is the Cathedral Basilica of Saint Louis St Louis where the transept is formed by two semi domes surrounding the main dome This church also closely emulates the column capitals and mosaic styles of the Hagia Sophia Other examples include the Alexander Nevsky Cathedral Sofia St Sophia s Cathedral London Saint Clement Catholic Church Chicago and Basilica of the National Shrine of the Immaculate Conception The Catedral Metropolitana Ortodoxa in Sao Paulo and the Eglise du Saint Esprit Paris closely follow the interior layout of the Hagia Sophia Both include four semi domes but the two lateral semi domes are very shallow In terms of size the Eglise du Saint Esprit is about two thirds the scale of the Hagia Sophia Synagogues based on the Hagia Sophia include the Congregation Emanu El San Francisco 276 Great Synagogue of Florence and Hurva Synagogue See also Edit Architecture portal Religion portal Christianity portal Islam portal Turkey portalList of Byzantine inventions List of tallest domes List of largest monoliths List of oldest church buildings List of tallest structures built before the 20th century List of Turkish Grand Mosques Conversion of non Islamic places of worship into mosquesReferences EditNotes Edit Also translated I think of Hagia Sophia and I am very saddened 176 Citations Edit Emerson William van Nice Robert L 1950 Hagia Sophia and the First Minaret Erected after the Conquest of Constantinople American Journal of Archaeology 54 1 28 40 doi 10 2307 500639 ISSN 0002 9114 JSTOR 500639 S2CID 193099976 Curta Florin Holt Andrew 2016 Great Events in Religion An Encyclopedia of Pivotal Events in Religious History 3 volumes ABC CLIO p 299 ISBN 978 1 61069 566 4 Hagia Sophia was consecrated on December 27 537 five years after construction had begun The church was dedicated to the Wisdom of God referring to the Logos the second entity of the Trinity or alternatively Christ as the Logos incarnate Eyice Semavi 1991 Ayasofya Hagia Sophia Islam Ansiklopedisi in Turkish Vol 4 Istanbul Turkish Diyanet Foundation pp 206 210 Kleiner Fred S Christin J Mamiya 2008 Gardner s Art Through the Ages Volume I Chapters 1 18 12th ed Mason OH Wadsworth p 329 ISBN 978 0 495 46740 3 Hamm Jean S 2010 Term Paper Resource Guide to Medieval History ABC CLIO p 39 ISBN 978 0 313 35967 5 Hagia Sophia or the Church of Holy Wisdom is one of the world s most spectacular churches representing not only great beauty but also masterful engineering a b c Fazio Michael Moffett Marian Wodehouse Lawrence 2009 Buildings Across Time 3rd ed McGraw Hill Higher Education ISBN 978 0 07 305304 2 Simons Marlise 22 August 1993 Center of Ottoman Power The New York Times Retrieved 4 June 2009 a b c Heinle amp Schlaich 1996 Cameron 2009 Meyendorff 1982 a b Janin 1953 p 471 Binns John 2002 An Introduction to the Christian Orthodox Churches Cambridge University Press p 57 ISBN 978 0 521 66738 8 McKenzie Steven L Graham Matt Patrick 1998 The Hebrew Bible Today An Introduction to Critical Issues Westminster John Knox Press p 149 ISBN 978 0 664 25652 4 Muller Wiener 1977 p 112 Jarus Owen 1 March 2013 Hagia Sophia Facts History amp Architecture livescience com Retrieved 15 July 2020 Hagia Sophia Archived 5 January 2009 at the Wayback Machine ArchNet a b c d e f g h i j k l m n o p Muller Wiener 1977 p 91 Hagia Sophia still Istanbul s top tourist attraction hurriyet Muller Wiener 1977 p 84 Alessandro E Foni George Papagiannakis Nadia Magnentat Thalmann Virtual Hagia Sophia Restitution Visualization and Virtual Life Simulation PDF Archived from the original PDF on 9 July 2007 Retrieved 3 July 2007 a b c d e f Janin 1953 p 472 a b c d e f g Dark Ken R Kostenec Jan 2019 Hagia Sophia in Context An Archaeological Re examination of the Cathedral of Byzantine Constantinople Oxford Oxbow Books pp 11 12 ISBN 978 1 78925 030 5 a b Mainstone Rowland J 1997 1988 Hagia Sophia Architecture Structure and Liturgy of Justinian s Great Church London Thames and Hudson p 131 ISBN 978 0 500 27945 8 Patria of Constantinople Mainstone Rowland J 1997 1988 Hagia Sophia Architecture Structure and Liturgy of Justinian s Great Church London Thames and Hudson p 132 ISBN 978 0 500 27945 8 Mainstone Rowland J 1997 1988 Hagia Sophia Architecture Structure and Liturgy of Justinian s Great Church London Thames and Hudson p 137 ISBN 978 0 500 27945 8 a b c d e f g h Dark Ken R Kostenec Jan 2019 Hagia Sophia in Context An Archaeological Re examination of the Cathedral of Byzantine Constantinople Oxford Oxbow Books pp 12 15 ISBN 978 1 78925 030 5 Hagia Sophia Hagia Sophia History Facts amp Significance Encyclopaedia Britannica The original church on the site of the Hagia Sophia is said to have been ordered to be built by Constantine I in 325 on the foundations of a pagan temple Ljudmila Djukic 9 September 2019 Hagia Sophia Constantinople The Byzantine Empire A Historical Encyclopedia Vol 2 ABC CLIO p 195 ISBN 978 1 4408 5147 6 Sharon La Boda 1994 International Dictionary of Historic Places Southern Europe Taylor amp Francis p 343 ISBN 978 1 884964 02 2 a b Lucien Ellington 2005 Eastern Europe An Introduction to the People Lands and Culture Volume 1 p 853 ISBN 978 1 57607 800 6 a b c d e f g h i j k l m n o p q r s t u Dark Ken R Kostenec Jan 2019 Hagia Sophia in Context An Archaeological Re examination of the Cathedral of Byzantine Constantinople Oxford Oxbow Books pp 15 20 ISBN 978 1 78925 030 5 Crawford Peter 2019 Roman Emperor Zeno The Perils of Power Politics in Fifth Century Constantinople Newburyport Pen amp Sword Books p 14 ISBN 978 1 4738 5927 2 OCLC 1206400173 a b c Gregory Timothy E 2005 1991 Kazhdan Alexander P ed Nestorios The Oxford Dictionary of Byzantium online ed Oxford University Press doi 10 1093 acref 9780195046526 001 0001 ISBN 978 0 19 504652 6 retrieved 1 October 2020 a b c Gregory Timothy E Culter Anthony 2005 1991 Kazhdan Alexander P ed Pulcheria The Oxford Dictionary of Byzantium online ed Oxford University Press doi 10 1093 acref 9780195046526 001 0001 ISBN 978 0 19 504652 6 retrieved 1 October 2020 a b Krawiec Rebecca 2008 Pulcheria in Smith Bonnie G ed The Oxford Encyclopedia of Women in World History online ed Oxford University Press doi 10 1093 acref 9780195148909 001 0001 ISBN 978 0 19 514890 9 retrieved 1 October 2020 Detorakhs 8eoxarhs E 2004 Agia Sofia o naos ths Agias toy 8eoy Sofias in Greek Ekdoseis Efesos p 20 ISBN 978 960 8326 14 9 Theodosius Earlier Second Church Ordered by I I Rufinus Built by Architect Justinian Current Church was Ordered by Emperor Tralles Designed by Greek Scientists Isidore of Miletus Anthemius of Exterior Walls and Architectural Elements Earlier second church ordered by Theodosius II built by architect Rufinus current Church was ordered by Emperor Justinian and designed by Greek scientists Isidore of Miletus and Anthemius of Tralles a b Mainstone Rowland J 1997 1988 Hagia Sophia Architecture Structure and Liturgy of Justinian s Great Church London Thames and Hudson p 135 ISBN 978 0 500 27945 8 a b c Book I beginning The Buildings of Procopius Loeb Classical Library 1940 Retrieved 15 July 2020 Kaldellis Anthony 2013 The Making of Hagia Sophia and the Last Pagans of New Rome Journal of Late Antiquity 6 2 347 366 doi 10 1353 jla 2013 0019 ISSN 1942 1273 S2CID 162336421 Mango Cyril A 1986 The Art of the Byzantine Empire 312 1453 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December 2011 Baalbek keeps its secrets stoneworld Silentiarius Paulus 2011 Descriptio Sanctae Sophiae Descriptio Ambonis Berlin De Gruyter doi 10 1515 9783110239072 ISBN 978 3 11 023907 2 Bell Peter Neville ed 2009 Three political voices from the age of Justinian Agapetus Advice to the Emperor Dialogue on political science Paul the Silentiary Description of Hagia Sophia Liverpool Liverpool University Press ISBN 978 1 84631 209 0 OCLC 318874086 a b Hurbanic Martin 2019 Hurbanic Martin ed The Last War of Antiquity The Avar Siege of Constantinople in 626 History and Legend New Approaches to Byzantine History and Culture Cham Springer International Publishing pp 81 102 doi 10 1007 978 3 030 16684 7 4 ISBN 978 3 030 16684 7 S2CID 200105105 retrieved 20 October 2020 Hurbanic Martin 2019 Hurbanic Martin ed The Spiritual Arsenal of the Siege The Avar Siege of Constantinople in 626 History and Legend New Approaches to Byzantine History and Culture Cham Springer International Publishing pp 315 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concerning the Baptism of Olga Archontissa of Rus Dumbarton Oaks Papers 46 271 277 doi 10 2307 1291660 ISSN 0070 7546 JSTOR 1291660 a b c Kazhdan Alexander P 2005 1991 Kazhdan Alexander P ed Ol ga The Oxford Dictionary of Byzantium online ed Oxford University Press doi 10 1093 acref 9780195046526 001 0001 ISBN 978 0 19 504652 6 retrieved 17 October 2020 Pritsak Omeljan 1985 When and Where was Ol ga Baptized Harvard Ukrainian Studies 9 1 2 5 24 ISSN 0363 5570 JSTOR 41036130 Flier Michael S 2010 Bjork Robert E ed Olga St The Oxford Dictionary of the Middle Ages online ed Oxford University Press doi 10 1093 acref 9780198662624 001 0001 ISBN 978 0 19 866262 4 retrieved 17 October 2020 Farmer David 2011 Olga The Oxford Dictionary of Saints 5th ed Oxford University Press doi 10 1093 acref 9780199596607 001 0001 ISBN 978 0 19 959660 7 retrieved 17 October 2020 a b Fennell John L 2013 1995 A History of the Russian Church to 1488 Routledge p 29 ISBN 978 1 317 89720 0 Maranci Christina September 2003 The Architect Trdat Building Practices and Cross Cultural Exchange in Byzantium and Armenia Journal of the Society of Architectural Historians 62 3 294 305 doi 10 2307 3592516 JSTOR 3592516 Muller Wiener 1977 p 87 a b c d Mamboury 1953 p 287 Magdalino Paul 2016 The triumph of 1133 In Bucossi Alessandra Suarez Alex Rodriguez eds John II Komnenos Emperor of Byzantium In the Shadow of Father and Son Centre for Hellenic Studies King s College London Publications 17 Oxford Routledge pp 53 70 doi 10 4324 9781315590547 ISBN 978 1 315 59054 7 Niketas Choniates Annals XIX O City of Byzantium Annals of Niketas Choniates Translated by Magoulias Harry J Wayne State University Press 1984 p 12 ISBN 978 0 8143 1764 8 Niketas Choniates Annals CLVII CLVIII O City of Byzantium Annals of Niketas Choniates Translated by Magoulias Harry J Wayne State University Press 1984 pp 89 90 amp 382 notes 434 435 ISBN 978 0 8143 1764 8 a b c d e f g Niketas Choniates Annals CCXXX CCXLII O City of Byzantium Annals of Niketas Choniates Translated by Magoulias Harry J Wayne State University Press 1984 pp 129 136 ISBN 978 0 8143 1764 8 a b Niketas Choniates Annals CCLI CCLII O City of Byzantium Annals of Niketas Choniates Translated by Magoulias Harry J Wayne State University Press 1984 pp xx xxi 141 ISBN 978 0 8143 1764 8 O City of Byzantium Annals of Niketas Choniates Translated by Magoulias Harry J Wayne State University Press 1984 p 315 ISBN 978 0 8143 1764 8 a b O City of Byzantium Annals of Niketas Choniates Translated by Magoulias Harry J Wayne State University Press 1984 p 306 ISBN 978 0 8143 1764 8 Victor Roudometof 15 October 2013 Globalization and Orthodox Christianity The Transformations of a Religious Tradition Routledge p 47 ISBN 978 1 135 01469 8 Avner Falk 8 May 2018 Franks and Saracens Reality and Fantasy in the Crusades Routledge p 164 ISBN 978 0 429 89969 0 Hamblin William J 2008 Arab perspectives on the Fourth Crusade In Madden Thomas F ed The Fourth Crusade Event Aftermath and Perceptions Papers from the Sixth Conference of the Society for the Study of the Crusades and the Latin East Istanbul Turkey 25 29 August 2004 Society for the Study of the Crusades and the Latin East Aldershot Ashgate Publishing Ltd p 175 ISBN 978 0 7546 6319 5 A Edward Siecienski 3 June 2019 Orthodox Christianity A Very Short Introduction Oxford University Press p 24 ISBN 978 0 19 088329 4 Gallo Rudolfo 1927 La tomba di Enrico Dandolo in Santa Sofia a Constantinople Rivista Mensile della Citta di Venezia 6 270 83 Guilland R 1953 ETUDES SUR L HISTOIRE ADMINISTRATIVE DE L EMPIRE BYZANTIN LE STRATOPEDARQUE ET LE GRAND STRATOPEDARQUE Byzantinische Zeitschrift 46 1 doi 10 1515 byzs 1953 46 1 63 ISSN 0007 7704 S2CID 191369605 Philippides Marios Hanak Walter K 2001 The Siege and the Fall of Constantinople in 1453 Historiography Topography and Military Studies Farnham Ashgate Publishing Ltd p 228 ISBN 978 1 4094 1064 5 Hurbanic Martin 2019 Hurbanic Martin ed Conclusion The Avar 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to reinstate Hagia Sophia as mosque Financial Times 15 November 2013 Archived from the original on 10 December 2022 Retrieved 24 December 2013 Greece angered over Turkish Deputy PM s Hagia Sophia remarks Hurriyet 19 November 2013 Retrieved 20 November 2013 Turkey Pressure mounts for Hagia Sophia to be converted into mosque Christian Today 13 December 2013 Retrieved 24 December 2013 Pope s remarks to accelerate Hagia Sophia s conversion into mosque Hurriyet Daily News 16 April 2015 First call to prayer inside Istanbul s Hagia Sophia in 85 years Hurriyet a b Turkish politics heats up over Hagia Sophia hurriyetdailynews 12 June 2020 Court declares Hagia Sophia a monument museum hurriyetdailynews 22 November 2016 Hagia Sophia imam part of Erdogan s Islamization drive Deutsche Welle 7 November 2016 Muslim group prays in front of Hagia Sophia to demand re conversion into mosque Hurriyet Turkey rejects Greek criticism of Hagia Sophia prayers Hurriyet a b c Gall Carlotta 10 July 2020 Turkish 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