Mathilde was the daughter of Hugues I de Grandmesnil and Alix de Beaumont-sur-Oise. The date and place of her birth have not been found.
Her husband was Hugues de Montpinçon. They were married, but the date and place have not been found. They had no known children.
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Hugues I de Grandmesnil |
Robert I |
Gervaise de Grandmesnil |
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Hawise d'Échauffour |
Giroie d'Échauffour |
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Gisèle de Montfort |
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Alix de Beaumont-sur-Oise |
Yves de Beaumont-sur-Oise |
Yves II de Beaumont-sur-Oise |
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Judée Lupus de Bretagne |
Geoffroy I Bérenger de Bretagne |
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Havoise de Normandie |
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Note 1
Elle mourut en Terre Sainte avec second épouse Mattieu