| 1. James Blethyn |
 |
| B: |
1602 |
| P: |
Mathern, Monmouthshire, Wales, United Kingdom |
| D: |
1660 |
| P: |
Wales, , , United Kingdom |
|
| 2. Rev William Blethyn |
|
| B: |
1576 |
| P: |
Mathern, Monmouthshire, Wales, United Kingdom |
| M: |
1602 |
| P: |
Whitechapel, Lancashire, England, United Kingdom |
| D: |
|
| P: |
|
|
| 4. William Blethyn |
|
| B: |
1546 |
| P: |
Llandaff, Glamorgan, Wales, United Kingdom |
| M: |
1571 |
| P: |
Mathern, Monmouthshire, Wales, United Kingdom |
| B: |
Between 1590 and 1591 |
| P: |
Mathern, Monmouthshire, Wales, United Kingdom |
|
| 8. Gruffydd Bleddyn |
=> |
|
| B: |
1521 |
| P: |
Llandaff, Glamorgan, Wales, United Kingdom |
| M: |
1545 |
| P: |
Wales, , , United Kingdom |
| D: |
1576 |
| P: |
Llandaff, Morgannwg, Cymru, Gwent Wales |
|
1602 - 1660 (58 years)
