Descendance de
 
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(1045-1108) |
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(1049-1098) |
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| Justine de Gerberoy (1065-1124) | 
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Gilles Ier de Sarcus (1055-1109) |
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| Irène de Gerberoy (1068-1116) |
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Guillaume Ier de Crevecoeur (1045-1108) |
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| Guilbert de Gerberoy (1075-1131) |
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Marguerite de Clermont en Beauvaisis (1088-1136) |
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| Chrétienne de Gerberoy (1089-1156) |
| Source 1 fox |
