| Male Henry de Percy, Sir, 1st Earl Northumberland 3rd Lord |
| Female Margaret \ Matilda Neville, Baroness |
| Birth | 12 Feb 1329 | Raby Castle, Durham, Durham, England |
| Death | 12 May 1372 | Warkworth Castle, Alnwick, Northumberland, England |
| Burial | ||
| Other Spouse | Jean William, Sir 6th Earl DeRoss | F3951 | |
| Marriage | ||
| Other Spouse | William de Ros, 3rd Baron de Ros | F3950 | |
| Marriage | ||
| Father | Ralph Neville, 2nd Baron Neville de Raby, 2nd baron by writ 4th by tenure | F2850 Group Sheet | |
| Mother | Alice of Neville de Audley, 1st Lord of Raby | F2850 Group Sheet | |