Ban Shenchus 327, 179:2, 213:12, 215:5. CGH p.132. O'Rahilly's "Early Irish History and Mythology": The extant Irish traditions of raids on Roman Britain begin with Niall's father, Eochu Mugmedon. We are told that in a raid on Britain (Alba) Eochu carried off a lady named Cairenn, whom he made his wife, and who by him became mother of Niall. Now this name Cairenn appears to be otherwise unknown in Irish literature. It can hardly be mere coincidence that it has its exact counterpart in the Latin woman's name Carina, which, borrowed into Irish would have given Old Irish Cairenn. Accordingly I have no hesitation in accepting as trustworthy the tradition of the British origin of Niall's mother. Keating makes her 'daughter of the king of the Britons,' and elsewhere she is 'daughter of the king of the Old Saxons.' Corrupt forms of the last expression apparently led to the invention of a name for her father