Bef 1200-1264
| Sir William de Roos, of Helmesley | |
| B: | Bef 1200 |
| D: | Between 1258 and 1264 |
-1266
| Lucy FitzPeter | |
| M: | Bef 24 Jan 1234 |
| D: | 1266 |
Abt 1170-1227
| Robert de Roos | |
| B: | Abt 1170 |
| M: | 1191 |
| Haddington, East Lothian, Scotland | |
| D: | 1227 |
-1185
| Robert d'Avenel | |
| D: | 8 Mar 1185 |