
| John De Percy | |
| B: | 1270 |
| Of, , Sussex, England | |
| B: | Bef 20 Jul 1293 |
| William De Percy | |
| B: | 1274 |
| Of, , Sussex, England | |
| Henry De Percy, [BARON PERCY] | |
| B: | 6 Feb 1300/1301 |
| , Leconfield, Yorkshire, England | |
| D: | 26 Feb 1351/1352 |
| , Warkworth, Northumberland, England | |
| Idonea De Clifford | |
| B: | Abt 1300 |
| Of, APPLEBY, Westmoreland, England | |
| M: | 1314 |
| , , Yorkshire, England | |
| D: | 24 Aug 1365 |
| William Percy, [Sir Knight] | |
| B: | 1301 |
| , Alnwick, Northumberland, England | |
| D: | 1355 |
| Henry De Percy, [LORD] | |
| B: | 25 Mar 1273 |
| , Petworth, Sussex, England | |
| D: | 2 Oct 1314 |
| , Fountains Abbey, Yorkshire, England | |
| Eleanor Fitzalan (Arunde, [Baroness Percy] | |
| B: | Abt 1277 |
| Of, ARUNDEL, Sussex, England | |
| M: | Abt 1299 |
| Of, Alnwick, Northumberland, England | |
| D: | Jul 1328 |
| Henry De Percy | |
| B: | Abt 1235 |
| Of, Whitby, Yorkshire, England | |
| D: | 29 Aug 1272 |
| , Sallay, Craven, Yorkshire | |
| Eleanor Plantagenet (De, [Baroness Percy] | |
| B: | Abt 1244 |
| Of, , Surrey, England | |
| M: | 8 Sep 1268 |
| , York, Yorkshire, England | |
| D: | Aft 1282 |
| Jeffrey (Galfrid) De Percy, [Lord of Semar] | |
| B: | Abt 1240 |
| Of, Whitby, Yorkshire, England | |
| Josceline De Percy, [Lord of Linton] | |
| B: | Abt 1242 |
| Of, Whitby, Yorkshire, England | |
| Ingelram De Percy | |
| B: | Abt 1230 |
| , Petworth, Northumberland, England | |
| D: | 1262 |
| Sp, Abroad | |
| Aveline (Joan) De Fortibas | |
| M: | Abt 1266 |
| Of, Levington, Yorkshire, England | |
| William De Percy, [CannonOfStPeter | |
| B: | Abt 1237 |
| Of, Whitby, Yorkshire, England | |
| Helen Randolf | |
| M: | Abt 1267 |
| Of, Whitby, Yorkshire, England | |
| Walter De Percy | |
| B: | Abt 1233 |
| , Petworth, Northumberland, England | |
| Geffrey De Percy | |
| B: | Abt 1239 |
| , Petworth, Northumberland, England | |
| Alan De Percy | |
| B: | Abt 1241 |
| Of, Whitby, Yorkshire, England | |
| Elena De Percy | |
| B: | Abt 1244 |
| Of, Whitby, Yorkshire, England | |
| D: | Aft 1281 |
|
| Eleanor (Elene)(Ellen)(E De Baliol (Balliol) | |
| B: | Abt 1206 |
| Of, Red Castle, Angushire, Scotland | |
| D: | Bef 22 Nov 1281 |
| William De Percy | |
| B: | Abt 1193 |
| Of, Alnwick, Northumberland, England | |
| M: | Abt 1234 |
| , Red Castle, Augushire, Scotland | |
| D: | Bef 28 Jul 1245 |