Bona Sforza Queen of Poland and Grand Duchess of Lithuania (1494–1557) Parents Isabella of Naples Gian Galeazzo Sforza Children Isabella Jagiellon Anna Jagiellon Sophia Jagiellon, Duchess of Brunswick-Lüneburg Sigismund II Augustus Wojciech Olbracht Catherine Jagellon Siblings Ippolita Maria Sforza Francesco Sforza Partners Sigismund I the Old
