Casimir I of Oświęcim (Polish: Kazimierz I Oświęcimski) (1396 – 7 April 1434) was a Duke of Oświęcim since 1406 (under regency until 1414), ruler over Toszek (from 1414) and Strzelin (during 1416–1427).
Casimir I
Duke of Oświęcim, Toszek, Strzelin
Coat-of-arms of Upper Silesia (Opole, Oświęcim, Toszek, Strzelin, etc).
After his father's death on 1 January 1406, Casimir I was placed under the care of his paternal grandfather, Duke Przemysław I Noszak of Cieszyn, and, after his death in 1410, his guardianship was taken by his uncle Bolesław I.
On 19 December 1414 Casimir I took formal possession of his Duchy of Oświęcim, along with the towns of Toszek and Gliwice. However, the ambitions of the young Duke erupted then and claimed more lands from his uncle. The conflict ended only two years later, on 11 November 1416 when (following the mediation of Duke Henry IX of Lubin), the Duke of Cieszyn give the town of Strzelin and 300 fines as payment to Casimir I. Bolesław I retained the rest of his lands.
In 1424 Casimir I took part in the coronation of Sophia of Halshany as Queen of Poland. However, this doesn't mean that the Duke of Oświęcim maintain a pro-Polish politics; in fact, he began at the same time his contacts to with the Bohemian King Sigismund of Luxembourg, and even spend some time in his court (there are information that Casimir I, for unknown reasons, received from the King a pension for 3,000 pieces of gold, perhaps as a payment for his mediation with the Teutonic Order, which, had good relations with the Duke of Oświęcim).
In 1428 Casimir I land's were plundered by the Hussites. During their incursions over Silesia, were burned the towns of Kęty, Toszek and Pyskowice. Another of town who belonged to the Duke of Oświęcim, Gliwice, become in a major Hussite base on Upper Silesia. The struggles with the hussites in the region lasted until 1433, when Casimir I was able to recover Gliwice (who was replaced as a Hussite base by the nearby Bytom) thanks to the unexpected help of Duke Nicholas V of Karniów (son of Jan II of Iron, who years before ordered the assassination of Casimir I's father).
Casimir I died in 1434 and was buried in the Dominican church in Oświęcim.
Marriages and Issueedit
Before 28 May 1417 Casimir I married firstly with Anna (c. 1397–1426/33), daughter of Duke Henry VIII of Żagań. They had three sons:
casimir, oświęcim, this, article, needs, additional, citations, verification, please, help, improve, this, article, adding, citations, reliable, sources, unsourced, material, challenged, removed, find, sources, news, newspapers, books, scholar, jstor, june, 20. This article needs additional citations for verification Please help improve this article by adding citations to reliable sources Unsourced material may be challenged and removed Find sources Casimir I of Oswiecim news newspapers books scholar JSTOR June 2023 Learn how and when to remove this message Casimir I of Oswiecim Polish Kazimierz I Oswiecimski 1396 7 April 1434 was a Duke of Oswiecim since 1406 under regency until 1414 ruler over Toszek from 1414 and Strzelin during 1416 1427 Casimir IDuke of Oswiecim Toszek StrzelinCoat of arms of Upper Silesia Opole Oswiecim Toszek Strzelin etc Born1396Died7 April 1434Noble familySilesian Piasts of OpoleSpouse s Anna of ZaganMargareta of Opava RatiborIssueWenceslaus IPrzemyslawJan IV of OswiecimFatherPrzemyslaw of OswiecimMotherunknown He was the only child of Duke Przemyslaw of Oswiecim by his unknown wife Life editAfter his father s death on 1 January 1406 Casimir I was placed under the care of his paternal grandfather Duke Przemyslaw I Noszak of Cieszyn and after his death in 1410 his guardianship was taken by his uncle Boleslaw I On 19 December 1414 Casimir I took formal possession of his Duchy of Oswiecim along with the towns of Toszek and Gliwice However the ambitions of the young Duke erupted then and claimed more lands from his uncle The conflict ended only two years later on 11 November 1416 when following the mediation of Duke Henry IX of Lubin the Duke of Cieszyn give the town of Strzelin and 300 fines as payment to Casimir I Boleslaw I retained the rest of his lands In 1424 Casimir I took part in the coronation of Sophia of Halshany as Queen of Poland However this doesn t mean that the Duke of Oswiecim maintain a pro Polish politics in fact he began at the same time his contacts to with the Bohemian King Sigismund of Luxembourg and even spend some time in his court there are information that Casimir I for unknown reasons received from the King a pension for 3 000 pieces of gold perhaps as a payment for his mediation with the Teutonic Order which had good relations with the Duke of Oswiecim In 1428 Casimir I land s were plundered by the Hussites During their incursions over Silesia were burned the towns of Kety Toszek and Pyskowice Another of town who belonged to the Duke of Oswiecim Gliwice become in a major Hussite base on Upper Silesia The struggles with the hussites in the region lasted until 1433 when Casimir I was able to recover Gliwice who was replaced as a Hussite base by the nearby Bytom thanks to the unexpected help of Duke Nicholas V of Karniow son of Jan II of Iron who years before ordered the assassination of Casimir I s father Casimir I died in 1434 and was buried in the Dominican church in Oswiecim Marriages and Issue editBefore 28 May 1417 Casimir I married firstly with Anna c 1397 1426 33 daughter of Duke Henry VIII of Zagan They had three sons Wenceslaus I c 1418 before 29 July 1468 Przemyslaw 1425 December 1484 Jan IV 1426 30 by 21 February 1497 By 1433 Casimir I married secondly with Margareta 1410 5 July 1459 daughter of Jan II of Iron Duke of Raciborz They had no children References editGenealogical database by Herbert Stoyan Marek Miroslav Complete Genealogy of the House of Piast Genealogy EU self published source better source needed Genealogy of the House of Cieszyn Casimir I of OswiecimHouse of PiastBorn 1396 Died 7 April 1434 Regnal titles Preceded byPrzemyslaw Duke of Oswiecim1406 1434 Succeeded byWenceslaus I Przemyslaw Jan IV Retrieved from https en wikipedia org w index php title Casimir I of Oswiecim amp oldid 1158175077, wikipedia, wiki, book, books, library,
