Béatrix was the daughter of Hugues I de Clermont and Marguerite de Roucy. The date and place of her birth have not been found.
Her husband was Mathieu I, who she married in BEF 1101. The place has not been found. They had no known children.
Hugues I de Clermont |
Renaud de Creil |
Hulduin de Clermont |
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Émiline de Châteaudun |
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Ermengarde de Clermont-en-Beauvaisis |
Baudouin de Clermont |
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Marguerite de Roucy |
Hilduin IV de Montdidier |
Hilduin II (III) de Montdidier |
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Lasseline d'Harcourt |
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Alix de Roucy |
Èbles I de Roucy |
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Béatrix de Hainaut |
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