| Male Earl William DERBY |
| Birth | 1188-1291 | |
| Death | 1224-1278 | |
| Burial | ||
| Marriage | 1214-1278 [1, 2] | |
| Father | Earl Roger WINCHESTER | F6397 Group Sheet | |
| Mother | O HELYN | F6397 Group Sheet | |
| Male William DERBY |
| Birth | 1224-1321 | |
| Death | 1259-1314 | |
| Burial | ||
| Spouse | Margaret FERRIS | F6395 | |
| Marriage | 1249-1314 | |
| Notes | Married:
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