Isabelle was the daughter of Guillaume V de Garlande and Alix de Châtillon. The date and place of her birth have not been found.
She died in BET 1249 AND 1255. The place is not known.
Her husband was Jean de Beaumont-Gâtinais, who she married in BEF 1233. The place has not been found. Their five known children were Thibaut (?-?), Jean (?-?), (?-?), Nicolas (?-?) and Marie (?-?).
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Isabelle de Garlande |
Guillaume V de Garlande |
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Alix de Châtillon |
Guy II de Châtillon |
Gaucher II de Châtillon |
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Ade de Roucy |
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Adèle de Dreux |
Robert I de Dreux |
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Harvise d'Évreux |
| Event | Date | Details | Source | Multimedia | Notes |
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| Death | BET 1249 AND 1255 |
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| Attribute | Date | Description | Details | Source | Multimedia | Notes |
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| Nobility Title | dame de Clichy-la-Garenne |