Person

Jan IV of Oświęcim

d. 1497 · 15th century

Jan IV (d. 1497) was a Piast duke of Oświęcim, from a branch of the dukes of Cieszyn. In 1457 he sold the duchy to King Casimir IV Jagiellon of Poland for 50,000 marks, ending its separate existence under the Silesian Piasts. Oświęcim was formally incorporated into the Polish crown in 1564.

Jan IV of Oświęcim
Image: project: Leszek Ołdak, Marian Panic, Bolesław Polnar, vectorization: Poznaniak · Public domain · Wikimedia Commons

Mentioned in 1 state history

Duchy of Oswiecim

See also

Cite this entry
APA
The Epoch Institute. (2026). Jan IV of Oświęcim. In The Epoch Institute Encyclopedia. https://the-epoch-institute.org/encyclopedia/jan-iv-of-oswiecim
MLA
“Jan IV of Oświęcim.” The Epoch Institute Encyclopedia, The Epoch Institute, 2026, https://the-epoch-institute.org/encyclopedia/jan-iv-of-oswiecim. Accessed .
Chicago
The Epoch Institute. “Jan IV of Oświęcim.” The Epoch Institute Encyclopedia. 2026. https://the-epoch-institute.org/encyclopedia/jan-iv-of-oswiecim.
Harvard
The Epoch Institute (2026) ‘Jan IV of Oświęcim’, The Epoch Institute Encyclopedia. Available at: https://the-epoch-institute.org/encyclopedia/jan-iv-of-oswiecim (Accessed: ).

Last reviewed October 2026Random entry ↻