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. 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.