The lives of St. Columbanus and of St. Gall belong rather to foreign than to Irish history, but we may glance at them again in another place. Dungal, poet, astronomer, and theologian, was also like them, for a time, an exile. His identity is uncertain; the "Four Masters" mention twenty-two persons of the same name between the years 744 and 1015, but his Irish nationality is certain, and he calls himself "Hibernicus exul" in his poem addressed to his patron Charlemagne. He appears to have died in the Irish monastery at Bobbio, in North Italy, to which he left his library, and amongst other books the celebrated Antiphonary of Bangor, his possession of which seems to warrant us in supposing that Bangor was his original college. He appears to have been a close friend of Charlemagne's, and in 811 he wrote him his celebrated letter, explanatory of the two solar eclipses which had taken place the year before. The emperor could apparently find at his court no other astronomer of sufficient learning to explain the phenomena. Later on we find Dungal, at the request of Lothaire, Charlemagne's grandson, opening a school at Pavia to civilise the Lombards, to which institution great numbers of students flocked from every quarter. Dungal may, in fact, be regarded as the founder of the University of Pavia. His greatest effort whilst in Pavia was his work against the Iconoclasts. Dungal's attack upon the cultured Spanish bishop, Claudius, who championed them, as it was the first, so it appears to have been the ablest blow struck; and Western iconoclasm seemed to have for the time received a mortal wound from his hand.[20] Besides his long eulogy on his friend and patron Charlemagne, several other smaller poems of his survive, showing him to have been--like almost all Irishmen of that date--no mere pedant and student. Like almost all the more famous and attractive of the Irish colleges, Bangor suffered fearfully from the attacks of the northern pirates, who, according to St. Bernard, slew there as many as nine hundred monks. "Not a cross, not even a stone," says Dr. Healy, "now remains to mark the site of the famous monastery, whose crowded cloisters for a thousand years overlooked the pleasant islets and broad waters of Inver Becne." It has shared the fate of its compeers: _etiam periere ruinæ._ It would prove too tedious to enumerate the other Irish colleges which dotted the island in the sixth and seventh centuries. The most remarkable of them besides those that I have mentioned were Moville, at the head of Loch Cuan or Strangford Lough, in the County Down, founded by St. Finnian, who was born before 500, and who afterwards became known as Frigidius, Bishop of Lucca, in Switzerland. Colman, whose hymn is preserved in the "Liber Hymnorum," and Marianus Scotus, the Chronicler, were _alumni_ of Moville.