| Name | William de Ferrers | |
| Suffix | 4th Earl of Derby | |
| Gender | Male | |
| Death | 1247 | |
| Person ID | I322548442541 | Hurst Improbable Family Tree |
| Last Modified | 15 Jun 2026 | |
| Father | William de Ferrers, 3rd Earl of Derby, Earl of Ferrers, Knight Templar. d. 1190, third crusade siege of acre, gulf of haifa, Haifa, Haifa, Israel ![]() | |
| Mother | Sibilla | |
| Family ID | F4081 | Group Sheet | Family Chart |
Family ![]() |
Alice de Blondeville, of Chester | |||
| Children |
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| Family ID | F3947 | Group Sheet | Family Chart | ||
| Last Modified | 15 Jun 2026 | |||