1244-1310
| William De Ross | |
| B: | 1244 |
| Ingmanthorpe, England, United Kingdom | |
| D: | 28 May 1310 |
1268-Yes, date unknown
| Eustance Fitz Hugh | |
| B: | 1268 |
| Ingmanthorpe, England, United Kingdom | |
| D: | Yes, date unknown |
1196-1246
| William De Ross | |
| B: | 1196 |
| Helmsley, Yorkshire, England, United Kingdom | |
| D: | 1246 |
1250-Yes, date unknown
| Lucia Fitz Piers | |
| B: | 1250 |
| Forest of Dean, Coleford, Gloucestershire, England, United Kingdom | |
| D: | Yes, date unknown |
1170-1227
| Baron of Hemsley Robert De Ross | |
| B: | 1170 |
| Hamlake, Yorkshire, England, United Kingdom | |
| D: | 1227 |
1150-Yes, date unknown
| Isabella Canmore | |
| B: | 1150 |
| , , Scotland, United Kingdom | |
| M: | 1191 |
| Haddington, Lincolnshire, England, United Kingdom | |
| D: | Yes, date unknown |
1146-Yes, date unknown
| Roysia Trusbut | |
| B: | 1146 |
| Hamlake, Yorkshire, England, United Kingdom | |
| D: | Yes, date unknown |
1144-Yes, date unknown
| Everard De Ross | |
| B: | 1144 |
| Hamlake, Yorkshire, England, United Kingdom | |
| D: | Yes, date unknown |