Jan III of Oświęcim
Jan III | |
|---|---|
| Duke of Oświęcim | |
Coat-of-arms of Upper Silesia (Opole, Oświęcim, etc) | |
| Born | 1366-1376 |
| Died | by 19 August 1405 |
| Noble family | Silesian Piasts of Opole |
| Spouse(s) | Hedwig of Lithuania |
| Father | Jan II of Oświęcim |
| Mother | Hedwig of Brzeg |
Jan III of Oświęcim (Polish: Jan III oświęcimski) (1366-1376 – by 19 August 1405) was a Duke of Oświęcim since 1376 until his death.
He was the eldest child and only son of Duke Jan II of Oświęcim by his wife Hedwig, daughter of Ludwik I the Fair, Duke of Brzeg. Initially, historians thought that Dukes Jan II and Jan III are the same person, until the discovery of further sources who confirmed Jan III's existence.