| John Welles | ||||
| | b 20 Apr 1352 | ||||
| Eudo Welles | d 1421 | John De Mowbray, [Baron Mowbray] | > | |
| |b 1340 | | | John De Mowbray, [Baron Mowbray] | Joan Plantagenet, [Baroness] | > |
| | | Eleanor De Mowbray, [Baroness] | b 25 Jun 1340 | John De Segrave, [Baron Segrave] | > |
| | | b 25 Mar 1364 | Elizabeth De Segrave, [Baroness] | Margaret Plantagenet, [Duchess] | > |
| Lionel Welles | d 1399 | b 25 Oct 1338 | ||
| |Joan Waterton | | | |||
| | | | | |||
| Maude Greystock | ||||
| | | ||||
| 1 | < | Margaret Welles |
Source: 'Burke's Presidential Families of the United States of America', H. Montgomery-Massingberd, 1975, Appendix C Section 1.