Béatrix was the daughter of Hélie II and Philippe du Perche. The date and place of her birth have not been found.
Her husband was Jean I de Ponthieu. They were married, but the date and place have not been found. Their only known child was Alix (c1150->1220).
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Hélie II |
Foulques V d'Anjou |
Foulques IV d'Anjou |
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Bertrade de Montfort |
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Erembourg de la Flèche |
Élie I de la Flèche |
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Mahaut Mathilde |
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Rotrou III de Perche |
Geoffroy II de Bellême |
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Béatrix de Roucy |
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Mathilde Fitz Roy |
Henri I de Normandie |
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