Alexander de Percy 1280–1354 | | |
| | Elizabeth Mowbray 1340–1391 Sir William VIII Gascoigne 1335–1419 | | |
| | Sir Alexander Mowbray 1314–1368 Elizabeth Musters 1316–1347 | | |
| | John de Mowbray 1286–1322 | | |
| | William de Percy 1260–1295 Johanna de Neville 1261–… | | |
| | William de Percy 1205–1293 | | | | Walter de Percy 1185–1243 | | | | William de Percy 1138–1204 Agnes de Flamville 1153–1202 | | | | Robert de Percy 1105–1170 |
| | | Roger de Flamville 1120–1169 Ivetta de Arches 1116–1206 | | | | Lord William de Arches 1090–1154 | | |
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