Family: Bertram de Verdon / Maud de Ferrers (F3182)
Robert de Ferrers (1062-1139) 
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Hawise de Vitre, (Countess of Derb) (1069- )
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| William de Ferrers (1088-1138) |
| Walcheline de Ferrers (1092- ) |
Robert de Ferrers, Earl of Derby (1100-1159)  |
| Hawise de Ferrers (1108- ) |
| Dau de Ferrers (1113- ) |
| Dau de Ferrers (1115- ) |
| Isolda de Ferrers (1118- ) |
| Bertram de Verdon (1094- ) |
| Maud de Ferrers (1096- )
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