.. 1 King Edward I of England (1239 - 1307)
.. + Marguerite de France (1279 - 1317)
.... 2 Thomas Plantagenet (1300 - 1338)
.... + Alice de Hales ( - 1326)
...... 3 Margaret Plantagenet (1320 - 1399)
...... + John de Segrave (1315 - 1353)
........ 4 Elizabeth de Segrave (1338 - 1376)
........ + John de Mowbray (1340 - 1368)
.......... 5 Alianor de Mowbray (1364 - 1417)
.......... + John de Welles (1352 - 1421)
............ 6 Eudo de Welles ( - 1421)
............ + Maud de Greystoke
.............. 7 William Welles ( - 1464)
.............. + Anne Barnewall
................ 8 Elizabeth Welles (1440 - 1492)
................ + James Fleming (1442 - 1492)
.................. 9 Eleanor Fleming
.................. + Edmond Plunkett (1449 - 1510)
.................... 10 John Plunkett (1490 - 1550)
.................... + Ellen Barnewall (1490 - 1550)
...................... 11 James Plunkett (1539 - 1595)
...................... + Margery FitzJohn (1542 - )
........................ 12 John Plunkett (1605 - 1656)
........................ + Thomasine Dillon (1593 - )
.......................... 13 St. Oliver Plunkett (1629 - 1681) Archbishop of Armagh