KLDeWitt Genealogy Research Project
Our Family's Journey Through Time from Europe and Canada to the US

| Name | William de Ferrers | |
| Suffix | III 5th Earl of Derby | |
| Birth | 1193 | |
| Gender | Male | |
| Reference Number | 11592 | |
| Death | 28 Mar 1254 | |
| Person ID | I11592 | KLD Genealogy |
| Last Modified | 26 Jun 2026 | |
| Family 1 | Sibyl Marshal, Countess of Derby, b. Abt 1201 d. 27 Apr 1245 (Age 44 years) | |||||||||||||||
| Children |
|
|||||||||||||||
| Family ID | F4230 | Group Sheet | Family Chart | ||||||||||||||
| Last Modified | 26 Jun 2026 | |||||||||||||||
| Family 2 | Margaret de Quincy, Lady Countess of Derby, b. Abt 1218 d. 12 Mar 1280 (Age 62 years) | |||||||||||
| Children |
|
|||||||||||
| Family ID | F4231 | Group Sheet | Family Chart | ||||||||||
| Last Modified | 26 Jun 2026 | |||||||||||
We make every effort to document our research. If you have something you would like to add, please contact us.