| Lady Idonea (Idoine) De Clifford Baroness Percy | |
| B: | 28 Aug 1301 |
| Clifford, Appleby Castle, Westmorland, England | |
| D: | 24 Aug 1365 |
| Alnwick Castle (Buried at Beverley Minster, Northumberland, Gland, England) | |
| Baron William Baron Percy DE PRESSENE |
| Baron William Baron Percy DE PRESSENE | |
| B: | 1308 |
| Preston, Northumberland, England | |
| M: | 1327 |
| Tynemouth, Northumberland, England | |
| D: | 1355 |
| Preston, Northumberland, England | |
| Henry (1st Earl of Northampton,4th baron perch,King of Mann) Percy | |
| B: | 10 Nov 1341 |
| Alnwick, Northumberland, , England | |
| D: | 20 Feb 1408 |
| Killed battle of shrewsbury | |
| Margaret Neville |
| Margaret Neville | |
| B: | 12 Feb 1341 |
| Raby, Durham, , England | |
| M: | 12 Jul 1358 |
| Brancepeth, Durham, , England | |
| D: | 12 May 1372 |
| Alnwick, Northumberland, , England, | |
| Maud De Lucy |
| Maud De Lucy | |
| B: | 1343 |
| D: | 1398 |
| Henry (3rd Baron Percy) Percy |
| Henry (3rd Baron Percy) Percy | |
| B: | 1321 |
| Castle Alnwick, Northumberland, England | |
| D: | 1368 |
| Bur Alnwick, Northumb, England | |
| Mary of Lancaster |
| Mary of Lancaster | |
| B: | 1320 |
| Tutbury, Staffordshire, England | |
| M: | Sep 1334 |
| Tutbury Castle, Tutbury, Staffordshire, England | |
| D: | 01 Sep 1362 |
| Alnwick Castle, Northumberland, England | |
| Ralph ( 1st Earl of Westmoreland and 4th Baron of Raby) Neville | |
| B: | 15 Sep 1364 |
| Raby Castle, Raby-With-Keverstone, Durham | |
| D: | 21 Oct 1425 |
| Castle Raby,Raby,Durham,England | |
| Joan (Countess of Westmorland) Beaufort |
| Joan (Countess of Westmorland) Beaufort | |
| B: | 1379 |
| Raby, Durham, England | |
| M: | 29 Nov 1396 |
| Meuse, Loire, Rhone-Alpes, France | |
| D: | 13 Nov 1440 |
| Howden, Yorkshire, England | |
| Margeret Stafford |
| Margeret Stafford | |
| B: | May 1364 |
| Brancepeth, County Durham, England | |
| M: | 1382 |
| Stafford Castle, Staffordshire, England | |
| D: | 1396 |
| Staindrop, County Durham, England | |
| Maud DePercy |
| Maud DePercy | |
| B: | 17 Oct 1335 |
| Alnwick, Northumberland, England | |
| D: | 18 Feb 1379 |
| Bur Durham Cathedral, Durham, England | |
| Sir John (3rd Baron of Raby) De Neville |
| Sir John (3rd Baron of Raby) De Neville | |
| B: | 1328 |
| Raby, Durham, England | |
| M: | Jul 1357 |
| Alnwick, Northumberland, England | |
| D: | 17 Oct 1388 |
| Newcastle Upon Tyne, Northumberland, England | |
| Sir Henry de Percy 2nd Baron of Alnwick |
| Sir Henry de Percy 2nd Baron of Alnwick | |
| B: | 06 Feb 1301 |
| Leconfield, Yorkshire, England | |
| M: | 1314 |
| Yorkshire, England | |
| D: | 25 Feb 1351 |
| Alnwick, Northumberland, England | |
| Sir Robert De Clifford, 1st Baron Clifford | |
| B: | 1 April 1274 |
| Clifford Castle, Herefordshire, England | |
| D: | 24 June 1314 |
| Battle of Bannockburne, Stirlingshire, Scotland | |
| Lady Maud De Clare, Baroness Clifford |
| Lady Maud De Clare, Baroness Clifford | |
| B: | 1276 |
| , Gloucestershire, , England | |
| M: | 3 November 1295 |
| Clifford Castle, Herefordshire, England | |
| D: | 1 Feb 1327 |
| Hay, Hertfordshire, England | |