Euphrosyne Piast of Masovia was born circa 1293 to Boleslaus II of Masovia (c1251-1313) and Kunigunde of Bohemia (1265-1321) and died circa 1328 of unspecified causes. She married Władysław of Oświęcim (c1277-1324) 1304 JL .
Children
Name | Birth | Death | Joined with |
Jan I of Oświęcim (c1309-1372) | 1309 | 29 September 1372 | Unknown Salome of Plauen (c1347-aft1400) |
Anna of Oświęcim (?-1354) |
Residences