| Male Robert de Umfraville, Sir, KG, Lord of Redesdale |
| Birth | Abt. 1363 | |
| Death | 1437 | |
| Burial | ||
| Marriage | ||
| Father | ||
| Mother | ||
| Female Margaret Percy |
| Birth | ||
| Death | 1375 | Gyng, Essex, England |
| Burial | ||
| Other Spouse | William Ferrers, 3rd Baron Ferrers of Groby | F103 | |
| Marriage | ||
| Father | Henry Percy, 9th Baron Percy of Topcliffe, 2nd Baron Percy of Alnwick | F2780 Group Sheet | |
| Mother | Idonia Clifford | F2780 Group Sheet | |