1100 - 1162 (62 years)
| 5th Earl of Derby Sir William de Ferrers, III | |
| B: | 1200 |
| Derbyshire, England | |
| D: | 24 Mar 1254 |
| Evington, Leicestershire, England | |
 | Sibyl Marshall 1209-1245 |
| Sibyl Marshall | |
| B: | 1209 |
| Pembroke, Pembrokeshire, Wales | |
| D: | 27 Apr 1245 |
| Pembroke, Pembrokeshire, Wales | |
 | Margaret de Quincy Abt 1218-Abt 1280 |
| Margaret de Quincy | |
| B: | Abt 1218 |
| England | |
| D: | Abt 1280 |
| England | |
| 4th Earl of Derby Sir William de Ferrers, II | |
| B: | 1168 |
| Tutbury, Staffordshire, England | |
| D: | 1247 |
| Duffield, Derbyshire, England | |
 | Agnes de Kevelioc 1174-1247 |
| Agnes de Kevelioc | |
| B: | 1174 |
| Chester, Cheshire, England | |
| D: | 2 Nov 1247 |
| Stowe-by-Chartley, Staffordshire, England | |
| 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 |
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.
