Wilhelm III. von Jülich was born on an unknown date to Eberhard II von Hengebach (-aft1217) and Jutta von Jülich (-aft1190) and died 1218 Siege of Damietta (1218–19) of killed in action. He married Mathilde van Limburg (c1190-bef1237) .
Children
| Name | Birth | Death | Joined with |
| Wilhelm IV. von Jülich (1210-1278) | 1210 | 16 March 1278 Aachen | Margaretha van Gelre (?-?) |
| Walram von Jülich (-1271) | |||
| Dietrich von Jülich (-aft1236) | |||
Footnotes (including sources)
| ‡ General |