Isabeau was the daughter of Guy IX de Montmorency-Laval and Béatrice de Gâvre. The date and place of her birth have not been found.
She died in 1322. The place is not known.
Her husband was Péan de la Roche-Bernard. They were married, but the date and place have not been found. Their only known child was Eudes III (?-1364).
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Isabeau de Laval |
Guy IX de Montmorency-Laval |
Guy de Montmorency-Laval |
Guy VII de Montmorency-Laval |
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Philippa de Vitré |
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Isabelle de Beaumont-Gâtinais |
Guillaume de Beaumont-Gâtinais |
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Jeanne d'Aquigny |
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Rasse VII de Gâvre |
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Jeanne de Wavrin |
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| Event | Date | Details | Source | Multimedia | Notes |
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| Death | 1322 |
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