Catherine Jagellon Queen of Sweden (1526-1583) (1526–1583) Parents Bona Sforza Sigismund I the Old Children Isabella Johansdotter Princess Anna of Sweden Sigismund III Vasa Siblings Wojciech Olbracht John Jagiellon Sigismund II Augustus Hedwig Jagiellon, Electress of Brandenburg Katharina of Poland, Countess of Montfort Regina Szafraniec Anna Jagiellon Anna Jagiellon Sophia Jagiellon, Duchess of Brunswick-Lüneburg Isabella Jagiellon Partners John III of Sweden
