Jan IV of Oświęcim
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Jan IV of Oświęcim (Polish: Jan IV oświęcimski; 1426/1430 – by 21 February 1497), was a Duke of Oświęcim during 1434–1456 (until 1445 with his brothers as co-rulers) and Duke of Gliwice from 1465 to 1482.
Quick Facts Born, Died ...
Jan IV | |
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Duke of Oświęcim, Gliwice | |
Born | 1426/1430 |
Died | by 21 February 1497 |
Noble family | Silesian Piasts of Opole |
Spouse(s) | Katharina Barbara of Karniów |
Issue | Helena of Oświęcim |
Father | Casimir I of Oświęcim |
Mother | Anna of Żagań |
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He was the third son of Duke Casimir I of Oświęcim by his first wife Anna, daughter of Duke Henry VIII of Żagań.