Father: Count Siegmund I of Gleichen-Tonna Born: 1422 Married: Unknown Died: March 8, 1494
Mother: Princess Agnes of Querfurt Born: 1437 Died: 1465
Children: 1. Count Wilhelm of Gleichen-Tonna (b.1459) 2. Count Ernst of Gleichen-Tonna (b.1460) 3. Princess Margarethe of Gleichen-Tonna (b.1462) 4. Princess Agnes of Gleichen-Tonna (b.1463) 5. Count Siegmund II of Gleichen-Tonna (b.1465)