Thomasse was born about 1215, the daughter of Guillaume III de la Guerche and Hersende de Sillé-le-Guillaume. The place is not known.
She had two marriages/partners. Her first husband was André III de Vitré, who she married in 1240. The place has not been found. Their six known children were Nicole (?->1240), Marguerite (?-?), Eustachie (c1240->1288), Aliette (?-?), André IV (c1220-1251) and Alix (?-?).
Her second husband was Guy VII de Montmorency-Laval, who she married in ABT 1257. The place has not been found. They had no known children.
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Thomasse de la Guerche |
Guillaume III de la Guerche |
Geoffroy III de la Guerche |
Hugues de la Guerche |
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Marquise de Craon |
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Alard III de Château-Gontier |
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Mélissende |
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Hersende de Sillé-le-Guillaume |
Guillaume III de Sillé-le-Guillaume |
Hugues II de Sillé-le-Guillaume |
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NN de Sablé |
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| Event | Date | Details | Source | Multimedia | Notes |
|---|---|---|---|---|---|
| Birth | ABT 1215 |
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| Attribute | Date | Description | Details | Source | Multimedia | Notes |
|---|---|---|---|---|---|---|
| Nobility Title | dame de Mareuil |
| Association | Relationship |
|---|---|
| Thibault II de Mathefelon (baron de Matheflon) | père? |
| Jeanne de Bruyères | mère? |
Note 1