Isabella Jagiellon Queen Consort of Hungary (1519–1559) Parents Bona Sforza Sigismund I the Old Children John Sigismund Zápolya Siblings Wojciech Olbracht John Jagiellon Sigismund II Augustus Hedwig Jagiellon, Electress of Brandenburg Katharina of Poland, Countess of Montfort Regina Szafraniec Catherine Jagellon Anna Jagiellon Anna Jagiellon Sophia Jagiellon, Duchess of Brunswick-Lüneburg Partners John Zápolya
