The St. John Genealogy Project
Origin and Ancestry DNA Database & Electronic Archive
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 | Nest ferch Gruffudd (1100- ) |
 | Cadwallon ab Ifor "Bach" (1130- ) |
| Gwenllian ferch Ifor "Bach" (1130- )  |
| Gruffudd ab Ifor "Bach", arglwydd of Senghennydd (1130-1211)
|
| Mabel of Gloucester (1128-1183)
|
| Rhys ap Gruffudd (1170-1256) |
| Nest ferch Gruffudd (1170- ) |
| [unknown] ferch Gruffudd (1170- ) |
| Mawd ferch Gruffudd (1170- ) |
| [unknown] ferch Gruffudd (1170- ) |
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