Béatrice was the daughter of Jean I de Montfort-l‘Amaury and Jeanne de Châteaudun. The date and place of her birth have not been found.
She died in 1311. The place is not known.
Her husband was Robert IV de Dreux, who she married in 1260. The place has not been found. Their six known children were Marie (1265-1276), Yolande (1263-1322), Jeanne (c1265-1324), Jean II (1265-1309), Béatrice (1270-?) and Robert (?-?).
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Béatrice de Montfort-l‘Amaury |
Jean I de Montfort-l‘Amaury |
Amaury VII de Montfort |
Simon IV de Montfort |
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Alix de Montmorency |
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Béatrice de Viennois |
André VI Guigues de Bourgogne |
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Béatrice de Sabran |
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Jeanne de Châteaudun |
Hugues IV de Châteaudun |
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Guillaume de Roches |
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Marguerite |
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| Event | Date | Details | Source | Multimedia | Notes |
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| Death | 1311 |
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| Attribute | Date | Description | Details | Source | Multimedia | Notes |
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| Nobility Title | comtesse de Montfort-l‘Amaury |