Isabeau was the daughter of Guillaume I de Lalaing and Jeanne de Créquy. The date and place of her birth have not been found.
Her husband was Pierre de Hénin-Liétard, who she married in 1453. The place has not been found. Their two known children were Gabrielle (1466-?) and Philippe (1464-1511).
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Guillaume I de Lalaing |
Otton II de Lalaing |
Nicolas III de Lalaing |
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Isabeau de Montigny |
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Yolande de Barbançon |
Jean III de Barbançon |
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Jolande de Gâvre |
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Jeanne de Créquy |
Jean IV de Créquy |
Jean III de Créquy |
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Jeanne van Haveskerke |
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Jeanne de Roye |
Jean I de Roye |
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Jeanne de Béthune |
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