Guillaume was the son of unknown parents. The date and place of his birth have not been found.
He died in 1453. The place is not known.
His wife was Philiberte de Montaigu. They were married, but the date and place have not been found. They had no known children.
| Event | Date | Details | Source | Multimedia | Notes |
|---|---|---|---|---|---|
| Death | 1453 |
|
| Attribute | Date | Description | Details | Source | Multimedia | Notes |
|---|---|---|---|---|---|---|
| Nobility Title | sire d'Etrabonne |