The St. John Genealogy Project
Origin and Ancestry DNA Database & Electronic Archive
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 | Roger "Hên" ap Gwallter "Sais" (1350- )
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 | Anne Devereux (1330- )
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| Jane ferch Roger "Hên" (1370- )  |
| Gwladus ferch Roger "Hên" (1370- ) |
| [unknown] ferch Roger "Hên" (1370- ) |
| Lisod ferch Roger "Hên" (1370- ) |
| Sir Dafydd "Gam" ap Llywelyn Line 3, Knight (1370-1415)
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| Gwenllian ferch Gwilym (1370- )
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| Morgan ap Dafydd "Gam" (1400- ) |
| Thomas ap Dafydd "Gam" (1400- ) |
| Margred ferch Dafydd "Gam" (1400- ) |
| [unknown] ferch Dafydd "Gam" (1400- ) |
| Gwladus ferch Dafydd "Gam" (1400-1454)
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| Watkin Vaughan (1400- ) |
| Thomas Vaughan (1400-1469) |
| Sir Roger Vaughan, Knight (1400-1471) |
| John Vaughan (1400- ) |
| Elsbeth [1st] Vaughan (1400- ) |
| Elsbeth [2nd] Vaughan (1400- ) |
| Mawd Vaughan (1400- ) |
| [unknown] Vaughan (1400- ) |
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