- Parents
- Grandparents
- 4. Henry Percy, 2nd Earl of Northumberland (c1392-1455)
- 5. Eleanor Neville (1398-1472)
- 6. Richard de Poynings (-1429)
- 7. Eleanor Berkeley (-1455)
- Great-grandparents
- 8. Henry Percy (1364-1403)
- 9. Elizabeth Mortimer (1371-1417)
- 10. Ralph de Neville, 1st Earl of Westmorland (c1364-1425)
- 11. Joan Beaufort (1379-1440)
- 12. Robert de Poynings, 4th Baron Poynings (1382-1446)
- 13. Elizabeth Grey (c1383-bef1434)
- 14.
- 15.
- Great-great-grandparents
- 16. Henry Percy, 1st Earl of Northumberland (1341-1408)
- 17. Margaret Neville (1329-1372)
- 18. Edmund Mortimer, 3rd Earl of March (c1352-1381)
- 19. Philippa Plantagenet, 5th Countess of Ulster (1355-1382)
- 20. John Neville, 3rd Baron Neville de Raby (1328-1388)
- 21. Maud Percy (-1379)
- 22. John of Gaunt, 1st Duke of Lancaster (1340-1399)
- 23. Catherine De Roet (1350-1403)
- 24. Richard de Poynings, 4th Baron Poynings (c1355-1387)
- 25. Isabel de Grey (c1364-1394)
- 26.
- 27.
- 28.
- 29.
- 30.
- 31.