Guillaume was the son of unknown parents. The date and place of his birth have not been found.
He died on 17 DEC 1422. The place is not known.
His wife was Isabeau de Beaumanoir, who he married in AFT 1409. The place has not been found. They had no known children.
| Event | Date | Details | Source | Multimedia | Notes |
|---|---|---|---|---|---|
| Death | 17 DEC 1422 |
|
| Attribute | Date | Description | Details | Source | Multimedia | Notes |
|---|---|---|---|---|---|---|
| Nobility Title | seigneur de Guillemont |