John Jagiellon
Bishop of Poznań and illegitimate son of Sigismund I the Old, King of Poland
(1499–1538)
Parents
Katarzyna Telniczanka
Sigismund I the Old
Children
Siblings
Wojciech Olbracht
Anna Jagiellon
Katharina of Poland, Countess of Montfort
Isabella Jagiellon
Sophia Jagiellon, Duchess of Brunswick-Lüneburg
Beata Kościelecka
Regina Szafraniec
Sigismund II Augustus
Anna Jagiellon
Hedwig Jagiellon, Electress of Brandenburg
Catherine Jagellon
