Isabeau was born in 1272, the daughter of Olivier I de Machecoul and Eustachie de Vitré. The place is not known.
She died on 23 SEP 1316 in Rennes, Ille-et-Vilaine, Bretagne, France .
Her husband was Geoffroy VII de Châteaubriant, who she married in ABT 1290. The place has not been found. Their four known children were Geoffroy VIII (?-?), Amaury (?-1343), Thomasse (c1295-?) and Eustaisse (?-?).
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Isabeau de Machecoul |
Olivier I de Machecoul |
Pierre I de Dreux |
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Marguerite de Montaigu |
Maurice de Montaigu |
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Héloïse de la Garnache |
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Eustachie de Vitré |
André III de Vitré |
André II de Vitré |
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Mahaut de Mayenne |
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Thomasse de la Guerche |
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| Event | Date | Details | Source | Multimedia | Notes | ||
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| Birth | 1272 |
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| Death | 23 SEP 1316 |
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| Attribute | Date | Description | Details | Source | Multimedia | Notes |
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| Nobility Title | dame des Huguetières |
Note 1