| Hugh DE VIVONIA |
Earl William DE FERRERS 5th Of Derby (1190 - 1247) |
| Mabel MALET ( - <1249) |
Sibyl MARSHALL |
| William FORT DE VIVONIA (DE FORTIBUS) | Maud DE FERRERS |
| b. occ. edu. rel. d. 22 May 1259 br. ch. Flags. Maternal |
b. ca 1230 occ. edu. rel. d. 12 Mar 1298/9, age: 68 br. ch. Flags. Maternal |
| Spouses: 1, 2, 3 |
| > Joan DE VIVONIA < Cicely FORT DE VIVONNE (OR VIVONIA) |