Kuka naimisissa Rupert I di Legnica?

Rupert I (Roberto I) di Legnica (27 marzo 1347 – 12 gennaio 1409) è stato un nobile polacco, duca di Legnica.

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.