The St. John Genealogy Project
Origin and Ancestry DNA Database & Electronic Archive
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![[unknown] ferch Ieuan](img/female.jpg){kind=small} | [unknown] ferch Ieuan (1370- )
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| Margred [1st] ferch Llywelyn (1370- )  |
| Cecily ferch Llywelyn (1370- ) |
| Margred [2nd] ferch Llywelyn (1370- ) |
 | Ieuan ap Llywelyn (1370- ) |
| [unknown] ferch Llywelyn (1370- ) |
| Hywel ap Madog (1330- ) |
| Gwenllian ferch Llywelyn (1370- )
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