Guillaume was born after 1214, the son of Jean de Beaumont-Gâtinais and Alix de Villemomble. The place is not known.
He died in 1269. The place is not known.
His wife was Jeanne d'Aquigny. They were married, but the date and place have not been found. Their only known child was Isabelle (c1240-1277).
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Guillaume de Beaumont-Gâtinais |
Jean de Beaumont-Gâtinais |
Adam de Beaumont-Gâtinais |
Adam de Beaumont-Gâtinais |
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Alix le Riche |
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Alix de Villemomble |
Robert de Mauvoisin |
Raoul de Mauvoisin |
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Adelvie d'Aulnay |
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Cécile de Chevreuse |
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| Event | Date | Details | Source | Multimedia | Notes |
|---|---|---|---|---|---|
| Birth | AFT 1214 |
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| Death | 1269 |
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| Attribute | Date | Description | Details | Source | Multimedia | Notes |
|---|---|---|---|---|---|---|
| Nobility Title | conte di Caserta | |||||
| Nobility Title | seigneur de Beaumont-du-Gâtinais et de Villemonble |
Note 1