Mieszko I Prince of Upper Silesia

Mieszko I Prince of Upper was born about 1145 in Silesia, Germany.  Mieszko I Prince of Upper's father was Vladislas II King of Poland and his mother was Agnes Margravine of Austria.  His paternal grandparents were Boleslas III "The Crooked" King of Poland and Zbyslava of Kiev. He had a brother and a sister, named Boleslaw I "The Tall" Prince of and Richilde of.  He was the youngest of the three children.  He died on May 16th, 1211.