The St. John Genealogy Project
Origin and Ancestry DNA Database & Electronic Archive
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Efa ferch Gruffudd |
 Abt 1300 - Bef 1352 (52 years) |
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Gwilym "Hên" ap Gruffudd |
 Abt 1300 - Abt 1375 (75 years) |
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Madog ap Gruffudd |
| Abt 1300 - Yes, date unknown |
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| Unknown | |
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Gruffudd ap Tudur |
| Abt 1270 - Aft 1310 (41 years) |
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