Guillaume was born about 1130, the son of Guy I de Dampierre-sur-Aube and Helvide de Baudément. The place is not known.
He died before 1162. The place is not known.
His wife was Ermengarde de Toucy. They were married, but the date and place have not been found. Their five known children were Guy II (<1160-1216), Helvise (?-?), Milon (?-?), Élisabeth (?-?) and Odette (?-1212).
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Guillaume I de Dampierre |
Guy I de Dampierre-sur-Aube |
Thibaut II de Dampierre-sur-l‘Aube |
Thibaut de Dampierre |
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Marie |
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Élisabeth de Montlhéry |
Milon I de Bray |
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Adélaïde dite Lithuise de Blois |
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Helvide de Baudément |
André de Baudément |
Hilduin IV de Montdidier |
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Alix de Roucy |
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Agnès de Braine |
Hugues de Braine |
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Ade de Soissons |
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| Event | Date | Details | Source | Multimedia | Notes |
|---|---|---|---|---|---|
| Birth | ABT 1130 |
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| Death | BEF 1162 |
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| Attribute | Date | Description | Details | Source | Multimedia | Notes |
|---|---|---|---|---|---|---|
| Nobility Title | FROM 1151 TO 1161 | seigneur de Dampierre |