1040 - 
| 3rd Earl of Derby Sir William de Ferrers, I | |
| B: | 1140 |
| D: | 1190 |
| Israel | |
 | Sybil de Braose 1157-1228 |
| Sybil de Braose | |
| B: | 1157 |
| Sussex, England | |
| D: | 1228 |
| Derbyshire, England | |
 | 2nd Earl of Derby Robert de Ferrers, II 1100-1162 |
| 2nd Earl of Derby Robert de Ferrers, II | |
| B: | 1100 |
| Derbyshire, England | |
| D: | 1162 |
| Warwickshire, England | |
| Margaret Peverel 1100- |
| Margaret Peverel | |
| B: | 1100 |
| Nottinghamshire, England | |
| D: | Warwickshire, England |
| Robert de Ferrers, I 1062-1139 |
| Robert de Ferrers, I | |
| B: | 1062 |
| Normandy, France | |
| D: | 1139 |
| Staffordshire, England | |
| Bertha d'Aigle 1040- |
| Bertha d'Aigle | |
| B: | 1040 |
| Henry de Ferrers 1036-1088 |
| Henry de Ferrers | |
| B: | 1036 |
| M: | 1061 |
| Normandy, France | |
| D: | 1088 |
We make every effort to document our research. There is a lot of information that I do not have, and I know there are mistakes in this tree. My feelings will not be hurt if you give me corrections or additional information, especially if you can provide sources for the information.
