Guillaume was born about 1172, the son of unknown parents. The place is not known.
His wife was Constance de Courtenay-Châteaufort. They were married, but the date and place have not been found. They had no known children.
| Event | Date | Details | Source | Multimedia | Notes |
|---|---|---|---|---|---|
| Birth | ABT 1172 |
|
| Attribute | Date | Description | Details | Source | Multimedia | Notes |
|---|---|---|---|---|---|---|
| Nobility Title | seigneur de la Ferté-Arnaud |
Note 1
son of Ernaud de Villepreux, Seigneur de la Ferte-Ernaud & Villepreux and Alice
Note 2