1303 - 1365 (62 years)
| Ralph de Percy, Earl of Northumberland | |
| B: | Abt 1359 |
| Alnwick, Northumberland, England | |
| D: | 15 Sep 1397 |
| Battlefield, Acre, Akko, Hazafon, Palestine, Israel | |
| Philippa (Johanna) de Strathbogie | |
| B: | Between 1361 and 1362 |
| Perthshire, Scotland | |
| M: | Between 20 Mar 1376 and 1377 |
| of, Strathbogie, Aberdeen, Scotland | |
| D: | 2 Nov 1395 |
| Alan Percy | |
| B: | 1372 |
| Shrewsbury, Shropshire, England | |
| D: | Yes, date unknown |
| Margaret de Percy | |
| B: | 1368 |
| Shrewsbury, Shropshire, England | |
| D: | Yes, date unknown |
| Sir. Alan de Fenwick, Knight | |
| B: | Abt 1365 |
| of Fenwick, Wallington, Northumberland, England | |
| M: | Abt 1400 |
| Alnwick Castle, Alnwick, Northumberland, England | |
| D: | Yes, date unknown |
| Thomas de Percy | |
| B: | 1366 |
| Shrewsbury, Shropshire, England | |
| D: | 1386 |
| Spain | |
| Elizabeth Strathbogie | |
| B: | Abt 1354 |
| of, Atholl, Perth, Scotland | |
| M: | Bef 1386 |
| Shrewsbury, Shropshire, England | |
| D: | Aft 1416 |
| Earl 14 Earl Henry de Percy, VI | |
| B: | 20 May 1364 |
| Alnwick, Northumberland, England | |
| D: | 21 Jul 1403 |
| Battlefield, Shrewsbury, Shropshire, England | |
| Countess of Percy Elizabeth de Mortimer | |
| B: | 12 Feb 1370 |
| Usk, Monmouthshire, Wales | |
| M: | Bef 10 Dec 1379 |
| Usk, Monmouthshire, Wales | |
| D: | 20 Apr 1417 |
| England | |
| 13 Marshall of England Henry de Percy, V | |
| B: | 10 Nov 1345 |
| Carlisle Castle, Carlisle, Cumberland, England | |
| D: | 19 Feb 1408 |
| Branham, Moor, England | |
| Baroness of Ros Margaret de Neville | |
| B: | Abt 1332 |
| Raby-Keverstone Castle, Staindrop, Durham, England | |
| M: | 12 Jul 1358 |
| Brancepeth, Durham, England | |
| D: | 12 May 1372 |
| Baroness of Percy Mary Plantagenet | |
| B: | 1319 |
| Tutbury, Staffordshire, England | |
| D: | 1 Sep 1362 |
| Berwick Castle, Berwick, Wiltshire, England | |
| 12 Baron Sir Henry de Percy, IV | |
| B: | 1322 |
| Castle, Alnwick, Northumberland, England | |
| M: | 1344 |
| Tutbury, Staffordshire, England | |
| D: | 13 May 1368 |
| Berwick Castle, Berwick, Wiltshire, England | |
| Countess of Percy Ideona de Clifford | |
| B: | 1303 |
| Castle, Clifford, Hereford, England | |
| D: | 24 Aug 1365 |
| Earl Henry de Percy, III | |
| B: | 6 Feb 1301 |
| Leckonfield, East Riding, Yorkshire, England | |
| M: | 1314 |
| Yorshire, England | |
| D: | 25 Feb 1353 |
| Alnwick Castle, Alnwick, Northumberland, England | |
| Roger Percy | |
| B: | Abt 1330 |
| Raby-Keverstone Castle, Staindrop, Durham, England | |
| D: | CHILD |
| Raby-Keverstone Castle, Staindrop, Durham, England | |
| Eleanor Percy | |
| B: | Abt 1328 |
| Raby-Keverstone Castle, Staindrop, Durham, England | |
| D: | Bef 1368 |
| John Fitzwalter | |
| B: | Abt 1318 |
| Cumberland, England | |
| M: | Abt 1342 |
| of, , Cumberland, England | |
| D: | Yes, date unknown |
| Thomas de Percy, Bishop | |
| B: | 1333 |
| Alnwick, Northumberland, England | |
| D: | 1369 |
| Isabel de Percy | |
| B: | Abt 1324 |
| Alnwick, Northumberland, England | |
| D: | 1368 |
| Margaret de Percy, Baroness of Grooby | |
| B: | Abt 1332 |
| Alnwick, Northumberland, England | |
| D: | 3 Sep 1376 |
| Gyng, Buttsbury, Essex, England | |
| Sir. William de Ferrers, Baron | |
| B: | Between 28 Feb 1332 and 1333 |
| of Grooby, Ratby, Leicester, England | |
| M: | Bef 25 May 1368 |
| of Grooby, Ratby, Leicester, England | |
| D: | Between 8 Jan 1370 and 1371 |
| Stebbing, Essex, England | |
| William Percy | |
| B: | 1332 |
| Raby-Keverstone Castle, Staindrop, Durham, England | |
| Sir. Henry IV de Percy, Baron | |
| B: | 1322 |
| Castle, Alnwick, Northumberland, England | |
| D: | 18 May 1368 |
| Berwick Castle, Berwick, Wiltshire, England | |
| Joan de Oreby, Baroness of Astley | |
| B: | Between Apr 1349 and 1350 |
| Lincolnshire, England | |
| M: | Bef May 1365 |
| Castle, Alnwick, Northumberland, England | |
| D: | 29 Jul 1369 |
| Castle, Alnwick, Northumberland, England | |
| Isabella Percy | |
| B: | Abt 1348 |
| Carlisle Castle, Carlisle, Cumberland, England | |
| D: | 1386 |
| Sir. William I de Aton, Baron | |
| B: | Abt 1341 |
| of Malton, North Riding, Yorkshire, England | |
| M: | Abt 1362 |
| Berwick Castle, Berwick, Wiltshire, England | |
| D: | Between Mar 1388 and 1389 |
| Ralph de Percy, Earl of Northumberland | |
| B: | Abt 1359 |
| Alnwick, Northumberland, England | |
| D: | 15 Sep 1397 |
| Battlefield, Acre, Akko, Hazafon, Palestine, Israel | |
| Philippa (Johanna) de Strathbogie | |
| B: | Between 1361 and 1362 |
| Perthshire, Scotland | |
| M: | Between 20 Mar 1376 and 1377 |
| of, Strathbogie, Aberdeen, Scotland | |
| D: | 2 Nov 1395 |
| Alan Percy | |
| B: | 1372 |
| Shrewsbury, Shropshire, England | |
| D: | Yes, date unknown |
| Margaret de Percy | |
| B: | 1368 |
| Shrewsbury, Shropshire, England | |
| D: | Yes, date unknown |
| Sir. Alan de Fenwick, Knight | |
| B: | Abt 1365 |
| of Fenwick, Wallington, Northumberland, England | |
| M: | Abt 1400 |
| Alnwick Castle, Alnwick, Northumberland, England | |
| D: | Yes, date unknown |
| Thomas de Percy | |
| B: | 1366 |
| Shrewsbury, Shropshire, England | |
| D: | 1386 |
| Spain | |
| Elizabeth Strathbogie | |
| B: | Abt 1354 |
| of, Atholl, Perth, Scotland | |
| M: | Bef 1386 |
| Shrewsbury, Shropshire, England | |
| D: | Aft 1416 |
| Earl 14 Earl Henry de Percy, VI | |
| B: | 20 May 1364 |
| Alnwick, Northumberland, England | |
| D: | 21 Jul 1403 |
| Battlefield, Shrewsbury, Shropshire, England | |
| Countess of Percy Elizabeth de Mortimer | |
| B: | 12 Feb 1370 |
| Usk, Monmouthshire, Wales | |
| M: | Bef 10 Dec 1379 |
| Usk, Monmouthshire, Wales | |
| D: | 20 Apr 1417 |
| England | |
| 13 Marshall of England Henry de Percy, V | |
| B: | 10 Nov 1345 |
| Carlisle Castle, Carlisle, Cumberland, England | |
| D: | 19 Feb 1408 |
| Branham, Moor, England | |
| Baroness of Ros Margaret de Neville | |
| B: | Abt 1332 |
| Raby-Keverstone Castle, Staindrop, Durham, England | |
| M: | 12 Jul 1358 |
| Brancepeth, Durham, England | |
| D: | 12 May 1372 |
| Sir. Thomas de Percy, Baron | |
| B: | Abt 1345 |
| Carlisle Castle, Carlisle, Cumberland, England | |
| D: | 21 Jul 1403 |
| Shrewsbury, Shropshire, England | |
| Mary Plantagenet, Baroness of Percy | |
| B: | 1319 |
| Tutbury, Staffordshire, England | |
| M: | 1344 |
| Tutbury, Staffordshire, England | |
| D: | 1 Sep 1362 |
| Maud de Percy | |
| B: | Abt 1335 |
| Alnwick, Northumberland, England | |
| D: | Between 18 Feb 1378 and 1379 |
| Sir. John de Neville, Baron | |
| B: | 1328 |
| Raby-Keverstone Castle, Staindrop, Durham, England | |
| M: | Jul 1357 |
| Alnwick, Northumberland, England | |
| D: | 17 Oct 1388 |
| Newcastle Upon Tyne, Northumberland, England | |
| Earl Henry III de Percy | |
| B: | 6 Feb 1301 |
| Leckonfield, East Riding, Yorkshire, England | |
| M: | 1314 |
| Yorkshire, England | |
| D: | 25 Feb 1353 |
| Alnwick Castle, Alnwick, Northumberland, England | |
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