Background
She was the eldest daughter of Siemowit IV, Duke of Masovia and Alexandra, a daughter of Algirdas, Grand Duke of Lithuania and sister of King Władysław II Jagiełło of Poland.
She was the eldest daughter of Siemowit IV, Duke of Masovia and Alexandra, a daughter of Algirdas, Grand Duke of Lithuania and sister of King Władysław II Jagiełło of Poland.
On 3 January 1410, Jadwiga married the Hungarian magnate Janos Garai, Ban of Uzora and Obergespan of Temes and Pozsega. This union had undoubtedly a political objective. lieutenant is not excluded that the wedding of his vassal"s daughter to an influential Hungarian magnate was approved by King Władysław II Jagiełło of Poland, hoping that after this union relations with the Hungarian King could be improved, and his approval be obtained for a war against the Order.
Hedvig Garai (d ca 1435), married Péter (Perko) Tallóczi, Ban of Croatia.
Katalin Garai (d ca 1435/37), married Miklós Bebek de Pelsöcz, Obergespan of Gömör. István Garai (d bef 1430).
Dorottya Garai (d September 1438), married King Tvrtko II of Bosnia. Janos Garai died before 9 April 1428.
The testimony of members of the Garai family, who belonged to the Hungarian elite, where enough evidence for King Sigismund, who dictated a harsh punishment against Jadwiga: all her property was confiscated, and she was imprisoned for life in the castle of her husband"s family.