Guillaume was the son of Guillaume III de la Guerche and Hersende de Sillé-le-Guillaume. The date and place of his birth have not been found.
He died after 01 JAN 1263. The place is not known.
His wife was Yolande de Montmorency-Laval, who he married in ABT 1240. The place has not been found. Their only known child was Jeanne (c1250->1290).
Guillaume IV de la Guerche |
Guillaume III de la Guerche |
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Hersende de Sillé-le-Guillaume |
Guillaume III de Sillé-le-Guillaume |
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Event | Date | Details | Source | Multimedia | Notes |
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Death | AFT 1 JAN 1263 |
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Attribute | Date | Description | Details | Source | Multimedia | Notes |
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Nobility Title | FROM 1215 TO 1271 | seigneur de la Guerche et de Pouancé |
Note 1