Father: Count Wilhelmus of Bylandt-Doys Born: 1258 Married: Unknown Died: June 5, 1288 in Worringen
Mother: Princess Mechtild of Bylandt-Doys Born: 1264 Died: 1307
Children: 1. Count Theodoricus of Bylandt-Doys (b.1285) 2. Count Simon of Bylandt-Doys (b.1286) 3. Count Stephan of Bylandt-Doys (b.1288)
