Individual Details
Sibyl de Ferrers
( - )
Families
| Spouse | John de Vieuxpont ( - 1241) |
| Child | Robert de Vieuxpont ( - 1264) |
| Father | William de Ferrers, 4th Earl of Derby (1168 - 1247) |
| Mother | Living |
| Sibling | William de Ferrers, 5th Earl of Derby (1193 - 1254) |