Pierre was the son of Eudes I de Vermandois and Pavie de Ham. The date and place of his birth have not been found.
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Eudes I de Vermandois |
Herbert III de Meaux |
Adalbert I de Vermandois |
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Gerberge de Lorraine |
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Ermengarde de Mâcon |
Albéric II de Coucy |
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Ermentrude de Roucy |
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Pavie de Ham |
Evrard II de Ham |
Lambert de Ham |
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Jehanne de Coucy |
Léopold de Coucy |
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Berthilde de Marle |
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