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About Jan IV of Oświęcim
Jan IV of Oświęcim, was a Duke of Oświęcim during 1434–1456 and Duke of Gliwice from 1465 to 1482.
Everything about Jan IV of Oświęcim →- Occupation
- feudatory
- Citizenship
- Kingdom of Poland
- Born
- 1420
- Died
- October 28, 1495