ap Cynan, Gruffydd - (?) Prince of Gwynedd
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Ap Cynan, Gruffydd - (?) Prince of Gwynedd was the son of ap Iago, Cynan (?) and Olaf, Ranult [Ragnhildir] of Dublin ingen (?) Ap married Angharad (?), daughter of ap Edwin, Owain,ll Lord Tegaingl, in Wales. He is interred at Bangor Cathedral. He is referred to King of North Wales by Burke.