1390 - 1421 (31 years)
 | Thomas Trethurette 1477-1529 |
| Thomas Trethurette | |
| B: | 1477 |
| D: | 10 Sep 1529 |
| Mary Trevisa 1486-1575 |
| Mary Trevisa | |
| B: | Between 1462 and 1486 |
| M: | Bef 1503 |
| D: | Between 1508 and 1575 |
| John Trethurette 1450-1510 |
| John Trethurette | |
| B: | 1450 |
| D: | 20 Jun 1510 |
 | Elizabeth Courtenay Abt 1450-1544 |
| Elizabeth Courtenay | |
| B: | Abt 1450 |
| Cornwall, England | |
| M: | Bef 1477 |
| Cornwall, England | |
| D: | Between 1482 and 1544 |
 | Margaret St. Aubyn 1429-1497 |
| Margaret St. Aubyn | |
| B: | 1429 |
| Cornwall, England | |
| D: | 1 Nov 1497 |
| Cornwall, England | |
| Reginald Trethurette | |
| M: | Bef 1468 |
| Ashton, Devon, England | |
| Catherine Challons 1390-1421 |
| Catherine Challons | |
| B: | 1390 |
| Leigh, Devon, England | |
| D: | 1421 |
| John St. Aubyn 1380-1486 |
| John St. Aubyn | |
| B: | 1380 |
| Devon, England | |
| M: | Between 1390 and 1443 |
| D: | Between 1407 and 1486 |
| Devon, 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.
