Guillaume was born about 1215, the son of unknown parents. The place is not known.
He died in 1272. The place is not known.
He had two marriages/partners. His first wife was Jeanne de Courcy, who he married in ABT 1240. The place has not been found. They had no known children.
His second wife was Marguerite d'Avaugour, who he married in 1296. The place has not been found. They had no known children.
| Event | Date | Details | Source | Multimedia | Notes |
|---|---|---|---|---|---|
| Birth | ABT 1215 |
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| Death | 1272 |
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| Attribute | Date | Description | Details | Source | Multimedia | Notes |
|---|---|---|---|---|---|---|
| Nobility Title | FROM 1265 TO 1272 | baron de Hamby |
Note 1