.. 1 King Edward III of England (1312 - 1377) .. + Philippa de Hainault (1314 - 1369) .... 2 Sir John of Gaunt (1340 - 1399) .... + Katherine de Roet (1350 - 1403) ...... 3 Joan Beaufort (1379 - 1440) ...... + Sir Ralph de Neville (1364 - 1425) ........ 4 Sir Edward Neville (1417 - 1476) ........ + Elizabeth Beauchamp (1415 - 1448) .......... 5 Katherine Neville .......... + Robert Tanfield (1461 - 1504) ............ 6 William Tanfield (1489 - 1529) ............ + Isabel Stavely .............. 7 Francis Tanfield (1508 - 1558) .............. + Bridget Cave ( - 1583) ................ 8 Anne Tanfield ................ + Clement Vincent .................. 9 Elizabeth Vincent .................. + Richard Lane .................... 10 Dorothy Lane (1589 - ) .................... + William Randolph (1571 - 1657) ...................... 11 Richard Randolph (1622 - 1678) ...................... + Elizabeth Ryland ........................ 12 Col. William Randolph (1650 - 1711) ........................ + Mary Isham (1660 - 1735) .......................... 13 Isham Randolph (1685 - 1742) .......................... + Jane Rogers (1697 - 1761) ............................ 14 Jane Randolph (1720 - 1776) ............................ + Col. Peter Jefferson (1708 - 1757) .............................. 15 Pres. Thomas Jefferson (1743 - 1826) .............................. + Martha Wayles (1748 - 1782) .............................. + Sally Hemings (1773 - 1835)