The 13th century History of Gruffydd ap Cynan records that he was born in Dublin...

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The 13th century History of Gruffydd ap Cynan records that he was born in Dublin, son of "Cynan king of Gwynedd and his mother Ragnaillt daughter of Olaf King of the city of Dublin", adding that his maternal grandmother was "Mailcorcre daughter of Dunlang son of Tuathal King of Leinster" = it is possible that Ragnhild's father was Olav son of Sihtric. m CYNAN ap Iago, son of IAGO ap Idwal King ofGwynedd & his wife Gruffydd’s Descent from the Royal Houses of Wales, Ireland, and Norway by Michael Newton

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