Father: Count Friedrich II of Pfirt Born: 1177 Married: Unknown Died: January 25, 1243
Mother: Princess Heilwich of Urach Born: 1203 Died: 1261
Children: 1. Princess Algearde of Pfirt (b.1221) 2. Count Ludwig III of Pfirt (b.1228) 3. Bishop Berchtold of Basel (b.1230) 4. Count Albrecht of Pfirt (b.1233) 5. Princess Anna of Pfirt (b.1235) 6. Count Ulrich I of Pfirt (b.1238)