A trusted official of King Sigismund I the Old, he defended the privileges of the church and having a doctor of laws focused around Poland’s intellectual elite and supported many eminent humanists of his day. He founded a scholarship to honour Marcin Kromer, allowing a student to study in Padua and supported professor of medicine Joseph Ostrich.
At the The Diet Piotrkow in 1538, which dealt with restrictions on the economic rights of the Jews he made a speech demanding the expulsion of the Jews from Poland. The next day (11 March 1538) he was dead. This became the basis for devising suspicion that he was poisoned. He was buried behind the altar in the Wawel Cathedral. Currently his tombstone is in King John Albert Chapel in Wawel Cathedral (formerly Bożego Ciała).
- Bishop Bl. Jan Chojeński at Catholic Heirachy.com
- Diocese of Plock at GCatholic.org
- Piotr Nitecki, the Bishops of the Church in Poland in the years 965-1999 in Słownik biograficzny, ed. II, Warszawa 2000, p51. ISBN 83-211-1311-7.
- Urzędnicy centralni i nadworni Polski XIV-XVIII wieku, Kórnik 1992, page145.
- Władysław Pociecha, Chojeński Jan. in Polish Biographical Dictionary . Polish Academy of Learning 1937, pp. 396-399. ISBN 8304032910.
|Bishop of Płock
1531 – 1538
| Succeeded by|