Olivier was the son of André de Baudément and Adélaïde de Roye. The date and place of his birth have not been found.
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André de Baudément |
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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Adélaïde de Roye |
Wallérand de Roye |
August de Roye |
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Jossine de Noyon |
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Ǽlise de Boves |
Dreux de Boves |
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Adèle de Crépy |
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