Agnès was born about 1083, the daughter of Ivo IV de Beaumont-sur-Oise and Adélaïde de Gournay. The place is not known.
She died after 1124. The place is not known.
Her husband was Bouchard III de Montmorency, who she married in ABT 1096. The place has not been found. Their four known children were Adélaïde (c1096-?), Mathieu I (c1100-c1160), Thibaut (?-1147) and Agnès (?-?).
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Agnès de Beaumont-sur-Oise |
Ivo IV de Beaumont-sur-Oise |
Yves de Beaumont-sur-Oise |
Yves II de Beaumont-sur-Oise |
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Judée Lupus de Bretagne |
Geoffroy I Bérenger de Bretagne |
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Havoise de Normandie |
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Adélaïde de Gournay |
Hugues II de Gournay |
Hugues I de Gournay |
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Berthilde de Gerberoy |
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Basilie de Dammartin |
Manassès I de Montdidier |
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Constance Capet |
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| Event | Date | Details | Source | Multimedia | Notes |
|---|---|---|---|---|---|
| Birth | ABT 1083 |
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| Death | AFT 1124 |
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| Attribute | Date | Description | Details | Source | Multimedia | Notes |
|---|---|---|---|---|---|---|
| Nobility Title | dame de Conflans-Sainte-Honorine |