 MaleSir William de Ros |
| Birth | Bef 1200 | Helmsley, Yorkshire, England  |
| Death | Abt 1265 | Kirkham, Yorkshire, England |
| Burial | ||
| Marriage | ||
| Father | Robert de Ros, Lord of Hamlake Castle | F4475 Group Sheet | |
| Mother | Isabella MacWilliam | F4475 Group Sheet | |
 FemaleLucy Fitzpiers |
| Birth | 1204 | Helmsley, Yorkshire, England |
| Death | Aft 1266 | Yorkshire, England |
| Burial | ||
| Father | Piers FitzHerbert | F4989 Group Sheet | |
| Mother | Alice Warkworth | F4989 Group Sheet | |
| Male + Sir William de Roos of Ingmanthorpe Sir William de Ros |
| Birth | Abt 1244 | England |
| Death | Bef 28 May 1310 | York, Yorkshire, England |
| Burial | ||
| Spouse | Eustache FitzRalph | F4473 | |
| Marriage | 1268 | England |
