Cine s-a căsătorit cu Sigismund I al Poloniei?

Sigismund I (în poloneză Zygmunt I Stary, în trad. Sigismund I cel Bătrân), (n. 1 ianuarie 1467, Kozienice, Mazovia, Polonia – d. 1 aprilie 1548, Cracovia, Regatul Poloniei) a fost rege al Poloniei (Uniunea statală polono-lituaniană) în 1506-1548. A făcut parte din dinastia Iagielonilor.

Barbara Zápolya (Hungarian: Szapolyai Borbála, Lithuanian: Barbora Zapojajietė, 1495–1515) was Queen of Poland and Grand Duchess of Lithuania as the first wife of Sigismund I the Old from 1512 to 1515. Marriage to Barbara represented an alliance between Sigismund and the House of Zápolya against the Habsburgs in succession disputes over the throne to the Kingdom of Hungary. The alliance was short-lived as the renewed Muscovite–Lithuanian War forced Sigismund to look for Habsburg allies. The marriage was loving, but short. Barbara was the mother of Hedwig, Electress of Brandenburg, but died soon after the birth of her second daughter Anna.

Bonne Sforza (en italien : Bona Sforza), née le 2 février 1494 à Vigevano et morte le 19 novembre 1557 à Bari, est par mariage reine de Pologne et grande-duchesse de Lituanie.