Sophia of Halshany, known simply as Sonka, was a princess of Lithuanian Alšėniškiai princely family who was Queen of Poland as the fourth and last wife of Jogaila, King of Poland and Supreme Duke of Lithuania. As the mother to Władysław III and Casimir IV, she was the co-founder of the Jagiellonian dynasty.
- Occupation
- consort
- Position held
- Queen Consort of Poland
- Citizenship
- Lithuania, Poland
- Born
- 1405
- Died
- September 21, 1461
