| | Margaret Trethurffe 1505–1576 | | |
| | Edward Courtenay 1455–1509 | | |
| | William Courtenay 1428–1485 | | |
| | Philip Courtenay 1404–1463 Elizabeth Hungerford 1406–1476 | | |
| | | | | | Philip Courtenay 1341–1406 | | | | Hugh de Courtenay 1303–1377 Margaret de Bohun 1311–1391 | | | | Hugh de Courtenay 1275–1340 Agnes de St. John 1279–1345 |
| | | Humphrey de Bohun 1276–1321 Elizabeth Plantagenet 1282–1316 |
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| | | Alice Patteshull 1318–1398 | | |
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| | | Alexander Champernoun …–… |
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