Guillaume was the son of unknown parents. The date and place of his birth have not been found.
He died about 1310. The place is not known.
His wife is not known. They were married, but the date and place have not been found. Their two known children were Guillaume II (c1300-1352) and Olive (?-?).
| Event | Date | Details | Source | Multimedia | Notes |
|---|---|---|---|---|---|
| Death | ABT 1310 |
|
| Attribute | Date | Description | Details | Source | Multimedia | Notes |
|---|---|---|---|---|---|---|
| Nobility Title | seigneur de la Marche |