| Male Baron of Hemsley Robert De Ross |
| Birth | 1170 | Hamlake, Yorkshire, England, United Kingdom |
| Death | 1227 | |
| Burial | ||
| Marriage | 1191 | Haddington, Lincolnshire, England, United Kingdom |
| Father | Everard De Ross | F2193 Group Sheet | |
| Mother | Roysia Trusbut | F2193 Group Sheet | |
| Female Isabella Canmore |
| Birth | 1150 | , , Scotland, United Kingdom |
| Death | Yes, date unknown | |
| Burial | ||
| Father | King of Scotland William Canmore, I | F2194 Group Sheet | |
| Mother | Daugther of Avenal | F2194 Group Sheet | |
| Male + William De Ross |
| Birth | 1196 | Helmsley, Yorkshire, England, United Kingdom |
| Death | 1246 | |
| Burial | ||
| Spouse | Lucia Fitz Piers | F2191 | |
| Marriage | ||