Ieuan ap Gruffudd
Abt 1311 - Yes, date unknownDrag or scroll to see more of the chart.
 | Griffith Ap Rhys Abt 1400-Yes, date unknown |
| Griffith Ap Rhys | |
| B: | Abt 1400 |
| Yorkshire, England | |
| D: | Yes, date unknown |
| Sionet verch David 1400-1450 |
| Sionet verch David | |
| B: | 1400 |
| Yorkshire, England | |
| D: | 1450 |
| Yorkshire, England | |
| Rhys ap Gruffudd Abt 1382- |
| Rhys ap Gruffudd | |
| B: | Abt 1382 |
| Yorkshire, England | |
| D: | Yorkshire, England |
| Margred ferch Rhys Abt 1382-Yes, date unknown |
| Margred ferch Rhys | |
| B: | Abt 1382 |
| Yorkshire, England | |
| M: | Abt 1400 |
| Yorkshire, England | |
| D: | Yes, date unknown |
| Gruffudd ap Ieuan Abt 1326-Yes, date unknown |
| Gruffudd ap Ieuan | |
| B: | Abt 1326 |
| Yorkshire, England | |
| D: | Yes, date unknown |
| Margred ferch Maredudd Abt 1365-Yes, date unknown |
| Margred ferch Maredudd | |
| B: | Abt 1365 |
| Yorkshire, England | |
| D: | Yes, date unknown |
| Gwenllian Ferch Hywel Abt 1288-Yes, date unknown |
| Gwenllian Ferch Hywel | |
| B: | Abt 1288 |
| Yorkshire, England | |
| D: | Yes, date unknown |
| Unknown |
| Ieuan ap Gruffudd Abt 1311-Yes, date unknown |
| Ieuan ap Gruffudd | |
| B: | Abt 1311 |
| Yorkshire, England | |
| D: | Yes, date unknown |
| Ieuan ap Gruffudd Abt 1307-Yes, date unknown |
| Ieuan ap Gruffudd | |
| B: | Abt 1307 |
| Yorkshire, England | |
| D: | Yes, date unknown |
| Unknown |