.. 1 King Edward III of England (1312 - 1377) .. + Philippa de Hainault (1314 - 1369) .... 2 Lionel Plantagenet (1338 - 1368) .... + Elizabeth de Burgh (1332 - 1363) ...... 3 Philippa Plantagenet (1355 - 1382) ...... + Edmund de Mortimer (1352 - 1381) ........ 4 Elizabeth Mortimer (1371 - 1417) ........ + Henry Percy (1364 - 1403) .......... 5 Henry Percy (1393 - 1455) [1] .......... + Alainor Neville (1407 - 1472) [2] .... 2 John of Gaunt (1340 - 1399) .... + Katherine de Roet (1350 - 1403) ...... 3 Joan Beaufort (1379 - 1440) ...... + Ralph de Neville (1364 - 1425) ........ 4 Alainor Neville (1407 - 1472) [2] ........ + Henry Percy (1393 - 1455) [1] .......... 5 Henry Percy (1421 - 1461) .......... + Alianor Poynings (1422 - 1484) ............ 6 Margaret Percy ............ + William Gascoigne ( - 1487) .............. 7 Elizabeth Gascoigne (1471 - 1559) .............. + George Tailboys (1467 - 1538) ................ 8 Anne Tailboys (1508 - 1566) ................ + Edward Dymoke (1508 - 1566) .................. 9 Frances Dymoke (1550 - 1610) .................. + Thomas Windebank (1550 - 1607) .................... 10 Mildred Windebank (1584 - 1656) .................... + Robert Reade (1551 - 1626) ...................... 11 George Reade (1608 - 1671) ...................... + Elizabeth Martiau (1625 - 1687) ........................ 12 Mildred Reade ( - 1694) ........................ + Augustine Warner Jr. (1642 - 1681) .......................... 13 Mildred Warner (1671 - 1701) .......................... + Lawrence Washington (1659 - 1698) ............................ 14 Augustine Washington (1694 - 1743) ............................ + Mary Ball (1708 - 1789) .............................. 15 George Washington (1732 - 1799) .............................. + Martha Dandridge (1731 - 1802)