1360 - 
| Sir John Tresham 1462-1521 |
| Sir John Tresham | |
| B: | 1462 |
| Harringworth, Northamptonshire, England | |
| D: | 1521 |
| Rushton, Northamptonshire, England | |
 | Lady Isabel Elizabeth Harrington 1467-1558 |
| Lady Isabel Elizabeth Harrington | |
| B: | 1467 |
| Kent, England | |
| M: | 1485 |
| England | |
| D: | 1558 |
| Addingham, Yorkshire, England | |
| High Sheriff of Cambridgeshire and Huntingdonshire, Speaker of the House of Commons Sir Thomas Tresham | |
| B: | 1420 |
| Harringworth, Northamptonshire, England | |
| D: | 6 May 1471 |
| Sywell, Northamptonshire, England | |
 | Lady Margaret la Zouche 1430-1494 |
| Lady Margaret la Zouche | |
| B: | 24 Nov 1430 |
| Harringworth, Northamptonshire, England | |
| D: | 8 Oct 1494 |
| Harringworth, Northamptonshire, England | |
| Speaker of the House of Commons, Chancellor of the Duchy of Lancaster Sir William Tresham | |
| B: | 1390 |
| Sywell, Northamptonshire, England | |
| D: | 22 Sep 1450 |
| Northamptonshire, England | |
 | Isabel de Vaux 1404- |
| Isabel de Vaux | |
| B: | 1404 |
| Northamptonshire, England | |
| M: | 1434 |
| Northamptonshire, England | |
| D: | Northamptonshire, England |
|
| Sir Thomas Tresham 1360- |
| Sir Thomas Tresham | |
| B: | 1360 |
| Sywell, Northamptonshire, England | |
| D: | England |
 | Lady Filia Rempston 1370- |
| Lady Filia Rempston | |
| B: | 1370 |
| Rempstone, Nottinghamshire, England | |
We make every effort to document our research. There is a lot of information that I do not have, and I know there are mistakes in this tree. My feelings will not be hurt if you give me corrections or additional information, especially if you can provide sources for the information.
