The St. John Genealogy Project
Origin and Ancestry DNA Database & Electronic Archive
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 | Gwilym ap Dafydd (1370- )
|
 | Tudful ferch Thomas (1370- ) |
| Jonet ferch Gwilym (1400- )  |
| Gwenllian [1st] ferch Gwilym (1400- ) |
| Gwenllian [2nd] ferch Gwilym (1400- ) |
| Crisli ferch Gwilym (1400- ) |
| [unknown] ferch Gwilym (1400- ) |
| Thomas ap Gwilym (1400- ) |
| Thomas "Fychan" ap Gwilym (1400- ) |
| Catrin ferch Gwilym (1400- ) |
| [unknown] ferch Gwilym (1400- ) |
| [unknown] ferch Gwilym (1400- ) |
| Dafydd "Gwyn" ap Gwilym (1400- ) |
| John "Gwyn" ap Gwilym (1400- ) |
| Morgan ap Gwilym (1400- ) |
| Cadwgon ap Gwilym (1400- ) |
| Rhys ap Jenkin (1400- )
|
| Efa [1st] ferch Ieuan "Fwya" (1430- )
|
| Jonet ferch Rhys (1430- ) |
| Lleucu ferch Rhys (1430- ) |
| Gwladus ferch Rhys (1430- ) |
| Joan "Ddû" ferch Rhys (1430- ) |
| Gwerful ferch Rhys (1430- ) |
| [unknown] ferch Rhys (1430- ) |
| John ap Rhys (1430- ) |
| Thomas ap Rhys (1430- ) |
| William ap Rhys (1430- ) |
| Jenkin "Tew" ap Rhys (1430- ) |
| Iorwerth ap Rhys (1430- ) |
| Llywelyn "Fychan" ap Gwilym (1400- )
|
| Mary ferch Rhys (1430- )
|
| Jane ferch Llywelyn "Fychan" (1430- ) |
| Thomas ap Llywelyn "Fychan" (1430- ) |
| Crisli ferch Llywelyn "Fychan" (1430- ) |
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