Father: Count Gerhard III of Blankenheim Born: 1176 Married: Unknown Died: 1221
Mother: UNKNOWN
Children: 1. Count Gerhard IV of Blankenheim (b.1203) 2. Count Konrad of Blankenheim (b.1204) 3. Count Friedrich of Blankenheim (b.1210) 4. Count Dietrich of Blankenheim (b.1212)