Father: Count Heinrich II of Diez Born: 1145 Married: Unknown Died: 1189
Mother: Princess Kunigunde of Katzenelnbogen Born: 1159 Died: 1211
Children: 1. Count Heinrich III of Diez (b.1183) 2. Count Gerhard of Diez (b.1185) 3. Count Bertoldus of Diez (b.1187) 4. Count Dieter of Diez (b.1189)