Guillaume was born about 1220, the son of Robert II de Poissy and Isabeau de Neufbourg. The place is not known.
He died about 1280. The place is not known.
His wife was Isabelle de Lévis, who he married in ABT 1243. The place has not been found. Their three known children were Robert IV (c1243-c1265), Mahaut (?-1250) and Gascé I (?-?).
Guillaume II de Poissy |
Robert II de Poissy |
Robert I de Poissy |
Gascé IV (III) de Poissy |
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Jacqueline de Fresne |
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Luce le Chambellan |
Brice du Plessis |
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Isabeau de Neufbourg |
Robert de Neufbourg |
Raoul de Neufbourg |
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Amicie Paynel |
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Isabeau Crespin |
Guillaume Crespin |
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Ève d'Harcourt |
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Event | Date | Details | Source | Multimedia | Notes |
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Birth | ABT 1220 |
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Death | ABT 1280 |
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Attribute | Date | Description | Details | Source | Multimedia | Notes |
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Nobility Title | seigneur de Noyon-sur-Andelle et de Malvoisine |