Nielsen Hayden genealogy
Family: Thomas de Furnival / Bertha de Ferrers (F9648)
Gerard de Furnival ( -1219) 
|
Maud de Lovetot (1178-1247)
|
Gerard de Furnival (1201- )  |
| William de Ferrers ( -1247)
|
| Agnes of Chester ( -1247)
|
| William de Ferrers (1193-1254) |
| Thomas de Furnival (1201-1240)
|
| Bertha de Ferrers ( -1267)
|
| Thomas de Furnival ( -1291) |