Father: Count Dietrich III of Mompelgard Born: 1219 Married: Unknown Died: September 4, 1283
Mother: Princess Alearde of Pfirt Born: 1221 Died: 1272
Children: 1. Princess Sibille of Mompelgard (b.1236) 2. Count Richard V of Mompelgard (b.1237) 3. Princess Agnes of Mompelgard (b.1239) 4. Princess Marguerite of Mompelgard (b.1241)