| Eustace de Vescy (ca1170 - 1216) |
William (III) de Ferrers Earl of Derby (ca1193 - 1254) |
| Margaret |
Sibilla Marshal |
| William de Vescy | Agnes de Ferrers |
| b. d. bef 7 Oct 1253, Gascony . Served on many campaigns. |
b. d. 11 May 1290 . 1st dau & co-heir of her mother. |
| Spouses: 1, 2 | Spouses: 1, 2 |
| John Vescy William de Vescy Lord Vescy |