The St. John Genealogy Project
Origin and Ancestry DNA Database & Electronic Archive
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 | Gruffudd "Gethin" ap Madog KEEP (1270- )
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 | Joan ferch Rhûn (1300- )
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| Dafydd ap Gruffudd "Gethin" (1300-1392) |
| Jenkin ap Gruffudd "Gethin" (1300- )  |
| Gwenllian ferch Gruffudd "Gethin" (1330- ) |
| Gawdyn ap Llywelyn (1270- )
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| [unknown] ferch Rhys "Ddû" (1300- )
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| Anne ferch Gawdyn (1330- ) |
| Ieuan ap Gruffudd "Gethin" KEEP (1300- )
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| Crisli ferch Gawdyn (1300- )
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| Mathew ab Ieuan KEEP (1330-1420) |
| Madog ab Ieuan (1330- ) |
| Elen ferch Ieuan (1330- ) |
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