Family: Ralph Le Bigod / Berta de Ferrers (F1488)
m. Abt 1282Sir Hugh Bigod (1216-1266) 
|
Joan de Stuteville (1220-1276)
|
Roger Bigod, 5th Earl ( -1306)  |
| Sir John Le Bigod (1250-1305) |
| William de Ferrers (1162-1246)
|
| Agnes de Meschines (1174-1247) |
| William de Ferrers, Earl of Derby (1200-1254) |
| Thomas de Ferrers (1202- ) |
| Hugh de Ferrers (1204-1257) |
| Robert de Ferrers (1206-1279) |
| Sybil de Ferrers (1216- ) |
| Hugh de Ferrers (1304- ) |
| Ralph Le Bigod (1252- )
|
| Berta de Ferrers (1256- )
|
| John Bigod (1283-1305) |