Isabelle was born about 1200, the daughter of Robert de Mauvoisin and Cécile de Chevreuse. The place is not known.
She died in 1249. The place is not known.
Her husband was Adam de Beaumont-Gâtinais, who she married in SEP 1211. The place has not been found. They had no known children.
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Isabelle de Mauvoisin |
Robert de Mauvoisin |
Raoul de Mauvoisin |
Raoul II de Mauvoisin |
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Adelvie d'Aulnay |
Gautier II d'Aulnay |
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Rancie de Mesnil-Aubri |
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Cécile de Chevreuse |
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| Event | Date | Details | Source | Multimedia | Notes |
|---|---|---|---|---|---|
| Birth | ABT 1200 |
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| Death | 1249 |
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| Attribute | Date | Description | Details | Source | Multimedia | Notes |
|---|---|---|---|---|---|---|
| Nobility Title | dame d'Aulnay |