Father: Count Berchtold II of Diessen Born: 1041 Married: Unknown Died: 1096
Mother: Princess Hidda of Wohenwarth Born: 1045 Died: 1109
Children: 1. Count Otto II of Diessen-Thanning (b.1065) 2. Count Berchtold III of Andechs (b.1067) 3. Count Konrad of Jasberg (b.1071)
