Father: Count Johann III of Heinsberg-Loen Born: 1390 Married: Unknown Died: May 1, 1443
Mother: Princess Walpurg of Moers Born: 1402 Died: 1434
Children: 1. Count Johann IV of Heinsberg-Loen (b.1420) 2. Princess Margarethe of Heinsberg-Loen (b.7/25/1426)
