| Male Sir Henry de Percy 2nd Baron of Alnwick |
| Birth | 06 Feb 1301 | Leconfield, Yorkshire, England |
| Death | 25 Feb 1351 | Alnwick, Northumberland, England |
| Burial | ||
| Marriage | 1314 | Yorkshire, England |
| Father | ||
| Mother | ||
| Female Lady Idonea (Idoine) De Clifford Baroness Percy |
| Birth | 28 Aug 1301 | Clifford, Appleby Castle, Westmorland, England |
| Death | 24 Aug 1365 | Alnwick Castle (Buried at Beverley Minster, Northumberland, Gland, England) |
| Burial | ||
| Other Spouse | Baron William Baron Percy DE PRESSENE | F3274 | |
| Marriage | 1327 | Tynemouth, Northumberland, England |
| Father | Sir Robert De Clifford, 1st Baron Clifford | F3273 Group Sheet | |
| Mother | Lady Maud De Clare, Baroness Clifford | F3273 Group Sheet | |
| Male + Henry (3rd Baron Percy) Percy |
| Birth | 1321 | Castle Alnwick, Northumberland, England |
| Death | 1368 | Bur Alnwick, Northumb, England |
| Burial | ||
| Spouse | Mary of Lancaster | F3264 | |
| Marriage | Sep 1334 | Tutbury Castle, Tutbury, Staffordshire, England |
| Female + Maud DePercy |
| Birth | 17 Oct 1335 | Alnwick, Northumberland, England |
| Death | 18 Feb 1379 | Bur Durham Cathedral, Durham, England |
| Burial | ||
| Spouse | Sir John (3rd Baron of Raby) De Neville | F2193 | |
| Marriage | Jul 1357 | Alnwick, Northumberland, England |