1135 - 1205 (70 years)
 | Sir William de Ros Bef 1200-Abt 1265 |
| Sir William de Ros | |
| B: | Bef 1200 |
| Helmsley, Yorkshire, England | |
| D: | Abt 1265 |
| Kirkham, Yorkshire, England | |
| Lucy Fitzpiers 1204-Aft 1266 |
| Lucy Fitzpiers | |
| B: | 1204 |
| Helmsley, Yorkshire, England | |
| D: | Aft 1266 |
| Yorkshire, England | |
| Robert de Ros Abt 1223-1285 |
| Robert de Ros | |
| B: | Abt 1223 |
| D: | 13 May 1285 |
| Sir Alexander de Ros -Abt 1306 |
| Sir Alexander de Ros | |
| D: | Abt 1306 |
| Robert de Ros, Lord of Hamlake Castle Abt 1172-1227 |
| Robert de Ros, Lord of Hamlake Castle | |
| B: | Abt 1172 |
| Helmsley, Yorkshire, England | |
| D: | 1227 |
| Helmsley, Yorkshire, England | |
| Isabella MacWilliam Abt 1165-Abt 1240 |
| Isabella MacWilliam | |
| B: | Abt 1165 |
| Scotland | |
| M: | 1191 |
| Haddington, East Lothian, Scotland | |
| D: | Abt 1240 |
| Scotland | |
| Roese Trussebut 1146-1194 |
| Roese Trussebut | |
| B: | 1146 |
| Hamlake, Yorkshire, England | |
| D: | 1194 |
| Helmsley, Yorkshire, England | |
| Everard de Ros Aft 1145-Abt 1186 |
| Everard de Ros | |
| B: | Aft 1145 |
| Yorkshire, England | |
| M: | Between 1170 and 1171 |
| England | |
| D: | Abt 1186 |
| Helmsley, Yorkshire, England | |
| Robert Trussebut -1193 |
| Robert Trussebut | |
| D: | 1193 |
|
| Aubrey de Harcourt 1135-1205 |
| Aubrey de Harcourt | |
| B: | 1135 |
| Shenton, Leicestershire, England | |
| D: | 1205 |
| Warter, Yorkshire, England | |
| Sir William Trussebut 1130-1176 |
| Sir William Trussebut | |
| B: | 1130 |
| Warter, Yorkshire, England | |
| D: | 1176 |
| Honsingore, Yorkshire, England | |
