The St. John Genealogy Project
Origin and Ancestry DNA Database & Electronic Archive
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 | Einion ap Gwallter (1170- ) |
 | Arddun ferch Rhys "Gryg" (1200- ) |
| John ap Gwilym (1170- ) |
| Hywel ab Einion (1200- )
|
| Annes ferch John (1200- )
|
| Gruffudd ap Hywel (1230- )  |
| Margred ferch Hywel (1230- ) |
| [unknown] ferch Hywel (1230- ) |
| Philip ap Hywel (1230- ) |
| [unknown] ap Hywel (1230- ) |
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