 | Sir William de Ros 1192-1264 |
| Sir William de Ros | |
| B: | 1192 |
| Helmsley, Yorkshire, England | |
| D: | 1264 |
| Yorkshire, England | |
| Lucy FitzPeter 1205-1266 |
| Lucy FitzPeter | |
| B: | 1205 |
| Breconshire, Wales | |
| D: | 1266 |
 | Baron of Helmsley Robert de Ros 1170-1226 |
| Baron of Helmsley Robert de Ros | |
| B: | 1170 |
| D: | 23 Dec 1226 |
| Isabella Mac William 1175-1226 |
| Isabella Mac William | |
| B: | 1175 |
| Haddington, East Lothian, Scotland | |
| D: | 23 Dec 1226 |
| London, England | |
| Edvard de Ros 1144-1183 |
| Edvard de Ros | |
| B: | 1144 |
| England | |
| D: | 1183 |
| Yorkshire, 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.
