Father: Prince Heinrich III Burwin of Mecklenburg Born: 1210 Married: Unknown Died: 1267
Mother: Princess Sophia of Sweden Born: 1214 Died: 1267
Children: 1. Prince Erich of Mecklenburg (b.1241) 2. Prince Heinrich of Mecklenburg (b.1245) 3. Prince Johann of Mecklenburg (b.1247) 4. Prince Waldemar of Mecklenburg-Rostock (b.1249)