| Male Henry de Percy |
| Birth | 1299 | |
| Death | 26 Feb 1352 | |
| Burial | ||
| Marriage | ||
| Father | Sir Henry de Percy | F4064 Group Sheet | |
| Mother | Eleanor Fitzalan | F4064 Group Sheet | |
| Female Idoine de Clifford |
| Birth | ||
| Death | 24 Aug 1365 | |
| Burial | ||
| Father | Lord Robert de Clifford | F4149 Group Sheet | |
| Mother | Maud de Clare | F4149 Group Sheet | |
| Male Henry de Percy |
| Birth | 1320 | |
| Death | 18 May 1368 | |
| Burial | ||
| Spouse | Mary Plantagenet | F3278 | |
| Marriage | Sep 1334 | |