Guillaume was born in 1181, the son of unknown parents. The place is not known.
He died in 1250. The place is not known.
His wife was Marguerite de Salins, who he married in BEF 1211. The place has not been found. They had no known children.
| Event | Date | Details | Source | Multimedia | Notes |
|---|---|---|---|---|---|
| Birth | 1181 |
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| Death | 1250 |
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