Nielsen Hayden genealogy
Family: Rhys ap Tewdyr, King of Deheubarth / (Unknown wife of Rhys ap Tewdyr) (F15915)
Gwyn ap Tewdwr Mawr ap Cadell (1030- )  |
Rhys ap Tewdyr, King of Deheubarth ( -1093) 
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| Gruffydd ap Rhys (1090-1137) |