Bertrand was born about 1120, the son of Rasse I de Gavre dit Nassau and NN d'Ath. The place is not known.
He died about 1150. The place is not known.
His wife was Ève de Chièvres, who he married in 1138. The place has not been found. Their two known children were Rasse IV (c1140->1190) and Berthe (c1145-?).
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Bertrand II de Gavre |
Rasse I de Gavre dit Nassau |
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NN d'Ath |
Wauthier d'Ath |
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Ade de Montdidier |
Hilduin IV de Montdidier |
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Alix de Roucy |
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| Event | Date | Details | Source | Multimedia | Notes |
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| Birth | ABT 1120 |
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| Death | ABT 1150 |
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