Guillaume was the son of Geoffroy III de Milly and Aliénor de Sancerre. The date and place of his birth have not been found.
His wife was Françoise de Sully. They were married, but the date and place have not been found. They had no known children.
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Geoffroy III de Milly |
Guillaume III de Milly |
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Agnès de Nemours |
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Aliénor de Sancerre |
Étienne II de Blois |
Étienne I de Blois |
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Alix de Donzy |
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Éléonore de Nesle-Soissons |
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| Attribute | Date | Description | Details | Source | Multimedia | Notes |
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| Nobility Title | seigneur de Milly |