Sophia of Halshany

Sophia of Halshany
16th-century miniature of Sophia
Queen consort of Poland
Reign	February 1422 – 1 June 1434
Coronation	5 March 1424
Born	c. 1405
Died	21 September 1461 Kraków, Poland
Burial	Wawel Cathedral
Spouse	Władysław II Jagiełło
Issue	Władysław III of Poland Casimir Casimir IV of Poland
Dynasty	Jagiellon
Father	Andrew Olshansky
Mother	Alexandra Drucka

Sophia of Halshany or Sonka Olshanskaya (Belarusian: Соф'я Гальшанская, Sofja Halšanskaja; Lithuanian: Sofija Alšėniškė; Polish: Zofia Holszańska; c. 1405 – September 21, 1461 in Kraków) was a Grand Duchy of Lithuania princess of Halshany. As the fourth and last wife of Jogaila, King of Poland and Supreme Duke of Lithuania, she was Queen consort of Poland (1422–1434). As the mother of Władysław III, King of Poland and Hungary, and Casimir IV, Grand Duke of Lithuania and King of Poland, she was the founder of the Jagiellon dynasty.

Sophia was a middle daughter of Andrew Olshansky, son of Vytautas' right-hand man Ivan Olshansky, and Alexandra Drucka, daughter of Dmitry of Druck. Historians disagree on the identity of Dmitry: Polish historiography usually provides Jogaila's half-brother Dmitry I Starshiy while Russian historians provide Dimitri Semenovich of Rurikid origin. Her father died when she was young and the family moved to Druck to live with Alexandra's brother Siemion Drucki. Sophia grew up in a Ruthenian environment and was an Eastern Orthodox Christian (her Orthodox name is Sonka). It is believed that she was illiterate and largely uneducated.