um 1270-1348
| DE PERCY, George | |
| *: | um 1270 |
| +: | 1348 |
1299-1368
| DE PERCY, Isabel | |
| *: | 1299 |
| +: | 25 Mai 1368 |
1301-1355
| DE PERCY, William | |
| *: | 1301 |
| Alnwick, Northumberland, England | |
| +: | 1355 |
1301-1352
| DE PERCY, 2nd Baron 2nd Baron Henry | |
| *: | 6 Feb 1301 |
| Leconfield, Yorkshire, England | |
| +: | 26 Feb 1352 |
| Warkworth Castle, Northumberland, England | |
1300-1365
| DE CLIFFORD, Idonea | |
| *: | 1300 |
| Appleby, Westmoreland, England | |
| oo: | Datum unbekannt |
| +: | 24 Aug 1365 |
| Alnwick, Northumberland, England | |
1302-
| DE PERCY, Maud | |
| *: | 1302 |
| Alnwick, Northumberland, England | |
um 1273-(zw.2.u.10.10.1314)
| DE PERCY, Henry | |
| *: | um 25 Mrz 1273 |
| Petworth House (Herrenhaus) , West-Sussex, England | |
| +: | (zw.2.u.10.10.1314) |
| Fountains Abbey, Yorkshire, England10. | |
1274-1328
| FITZ ALAN, Eleanor | |
| *: | 10 Aug 1274 |
| Arundel, Sussex, England | |
| oo: | 1299 |
| Alnwick, Northumberland, England | |
| +: | Jul 1328 |
um 1251-1282
| DE WARRENNE, Eleanor | |
| *: | um 1251 |
| Warren, Sussex, England | |
| +: | 1282 |
| Craven, Yorkshire, England | |
(1228/ 1235)-1272
| DE PERCY, Henry | |
| *: | (1228/ 1235) |
| Whitby, Yorkshire, England | |
| oo: | 8 Sep 1268 |
| Yorkshire, England | |
| +: | 29 Aug 1272 |
| Bur Salley Abbey, Northumb, Land, England | |