St. Columba (Columcille or Colm) was born at Gartan, County Donegal, 7th December 521, and was the son of a chief related to several of the princes then reigning in Ireland and the west of Scotland. He studied under St. Finnian at Moville, and under another of the same name at Clonard. In 546 he founded the monastery of Derry, and in 553 that of Durrow. The belief that he had caused the bloody battle of Culdremhne led to his excommunication and exile from his native land, and, accompanied by twelve disciples, he left Ireland and sailed for the Western Islands, settling ultimately at Iona, where he and his companions began their work among the heathen Picts. The legend of his perpetual exile seems to be a fable, and Dr. Skene adds, "His real motive for undertaking this mission seems therefore to have been partly religious and partly political. He was one of the twelve apostles of Ireland who had emerged from the school of Finnian of Clonard, and he no doubt shared the missionary spirit which so deeply characterised the monastic Church of Ireland at that period. He was also closely connected through his grandmother with the line of the Dalriadic kings, and, as an Irishman, must have been interested in the maintenance of the Irish colony in the west of Scotland. Separated from him by the Irish Channel was the great pagan nation of the Northern Picts, who, under a powerful king, had just inflicted a crushing defeat upon the Scots of Dalriada, and threatened their expulsion from the country; and, while his missionary zeal impelled him to attempt the conversion of the Picts, he must have felt that, if he succeeded in winning a pagan people to the religion of Christ, he would at the same time rescue the Irish colony of Dalriada from a great danger, and render them an important service by establishing peaceable relations between them and their greatly more numerous and powerful neighbours, and replacing them in the more secure possession of the western districts they had colonised."[190] It was in 563, and at the age of forty-two, that he settled at Iona and commenced his mission-work by founding his monastery[191] there. He met there "two bishops," who came to receive his submission from him, but "God now revealed to Columcille that they were not true bishops, whereupon they left the island to him, when he told of them their history." They were, thinks Dr. Skene, the remains of that anomalous church of seven bishops which here, as elsewhere, preceded the monastic church, while Columba appears to have refused to recognise them as such, and the island was abandoned to him. Possessed as he was with the soul of a poet, and susceptible to the impressive in nature, Columba could not have chosen a finer spot than Iona for his work, or one where he could better combine with missionary activity a life of purity and self-denial. Tradition says he landed at the bay now known as Port-a-churaich, and proceeded