Ford, P.K. (1970) Llywarch, Ancestor of Welsh Princes, Speculum, Vol. 45, No. 3,...

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Ford, P.K. (1970) Llywarch, Ancestor of Welsh Princes, Speculum, Vol. 45, No. 3, p. 450 Cited by Wikipedia: Merfyn_Frych Accessed 6/25/2019 jhd