When was the daughter of Barbara Kolanka died who became the Queen consort of Poland?
Barbara Kolanka Barbara Kolanka or Barbara Kołówna h. Junosza (end of the 15th century–1550) was a Polish noble lady. She is best known as the mother of Mikołaj "the Red" Radziwiłł and Barbara Radziwiłł, the latter of whom later became the Queen consort of Poland.
Hedwig of Sagan Hedwig of Sagan (Polish: "Jadwiga żagańska" ; before 1350 – 27 March 1390) was Queen of Poland as the fourth wife of Casimir III. Casimir's lack of male heir spelled the end of the Piast Dynasty in the Kingdom of Poland. After Casimir's death in 1370, she remarried Rupert I of Legnica.