.. 1 King Edward of England III (1312 - 1377)
.. + Philippa de Hainault (1314 - 1369)
.... 2 Sir John of Gaunt (1340 - 1399)
.... + Katherine de Roet (1350 - 1403)
...... 3 Sir John Beaufort (1372 - 1410)
...... + Margaret de Holand (1385 - 1429)
........ 4 Sir Edmund Beaufort (1406 - 1455)
........ + Alianor Beauchamp (1407 - 1467)
.......... 5 Eleanor Beaufort ( - 1501)
.......... + Sir Robert Spencer (1435 - 1501)
............ 6 Katherine Spencer ( - 1542)
............ + Sir Henry Algernon Percy (1478 - 1527)
.............. 7 Sir Thomas Percy ( - 1537)
.............. + Eleanor Harbottle ( - 1567)
................ 8 Sir Henry Percy ( - 1585)
................ + Katherine Neville (1546 - 1596)
.................. 9 Sir Henry Percy (1564 - 1632)
.................. + Dorothy Devereux
.................... 10 Dorothy Percy (1598 - 1659)
.................... + Sir Robert Sydney (1595 - 1677)
...................... 11 Algernon Sydney (1622 - 1683)