| b 1066, Of Clermont, Beauvais, , France | Renaud De Creil | Hugh De Creil | ||
| Renaud De Clermont | b 0990 | |||
| | b 1000 | ||||
| Hugh Count Of Clermont | Baudouin I Count Clermont | |||
| |b 1030 | | | Baudouin II Count Clermont | ||
| |d 1101 | Ermengardis De Clermont | b 0990 | ||
| | | b 1010 | |||
| Ermentrude Of Clermont, [Countess] | Hildouin II Count Montdidier, [Seigneur] | > | ||
| |Hugh 'Vras' 'Le_Gros' Avranches, 'Lupus' | Hildouin III Count Montdidier, [Seigneur] | |m 1088 | Hildouin IV Montdidier, Count | b 1000 |
| |Of, , , France | |b 1021 | |||
| Margaret De Montdidier, [Countess] | d 1063 | Giselbert Count Of Roucy | > | |
| b 1045 | | | Ebles I, Count Roucy | N. N. De Poitiers | |
| d 1110 | Alice (Adela) Countess Roucy | b 0994 | Rainer IV, Count Hainault | |
| b 1014 | Beatrix, Countess Of Hainault | Adwige (Avoise), Princess France | > | |
| d 1063 | b 0998 | |||