Father: Count Eberhard III of Nellenburg Born: 1221 Married: Unknown Died: 1257
Mother: Princess Agnes of Hirscher-Oradea Born: 1222 Died: 1279
Children: 1. Princess Anna of Nellenburg (b.1251) 2. Landgrave Mangold II of Hegau-Madach (b.1253) 3. Count Eberhard IV of Nellenburg (b.1256)
