.. 1 King Edward III of England (1312 - 1377) .. + Philippa de Hainault (1314 - 1369) .... 2 John of Gaunt (1340 - 1399) .... + Katherine de Roet (1350 - 1403) ...... 3 Henry Beaufort (1375 - 1447) ...... + Alice FitzAlan (1374 - ) ........ 4 Jane Beaufort (1391 - ) ........ + Edward Stradling (1389 - 1453) .......... 5 Henry Stradling (1423 - 1477) .......... + Elizabeth ............ 6 Thomas Stradling (1454 - 1480) ............ + Janet Mathew (1468 - 1485) .............. 7 Jane Stradling (1478 - 1520) .............. + William Griffith (1480 - 1531) ................ 8 Dorothy Griffith ................ + William Wynn Williams .................. 9 Jane Williams .................. + William Coytemore .................... 10 Rowland Coytemore (1565 - 1626) .................... + Katherine Miles ( - 1659) ...................... 11 Elizabeth Coytemore (1617 - 1649) ...................... + William Tyng (1605 - 1653) ........................ 12 Anna Tyng (1640 - 1709) ........................ + Thomas Shepard Jr. (1635 - 1677) .......................... 13 Anna Shepard (1663 - 1708) .......................... + Daniel Quincy (1651 - 1690) ............................ 14 John Quincy (1689 - 1767) ............................ + Elizabeth Norton (1696 - ) .............................. 15 Elizabeth Quincy (1721 - 1775) .............................. + William Smith Jr. (1707 - 1783) ................................ 16 Abigail Smith (1744 - 1818) ................................ + John Adams (1735 - 1826) 2nd President of the U.S. .................................. 17 John Quincy Adams (1767 - 1848) 6th President of the U.S. .................................. + Louisa Catherine Johnson (1775 - 1852)