Giselbert was the son of Robert I de Namur and Ermengarde de Basse-Lotharingie. The date and place of his birth have not been found.
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Robert I de Namur |
Bérenger de Namur |
Henri de la Marche |
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Ingeltrude de Frioul |
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Sympherienne de Hainaut |
Régnier I de Hainaut |
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Albérade de Mons |
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Ermengarde de Basse-Lotharingie |
Otton de Basse-Lotharingie |
Charles I de Lorraine |
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