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.

Cluain Eidnech, or Clonenagh, the "Ivy Meadow," was founded by St. Fintan, near Maryborough, in the present Queen's County. Angus the Culdee, who with its Abbot Maelruain is said to have composed the Martyrology of Tallaght prior to 792, was its greatest ornament. Of his Irish works we shall have more to say later on. Clonenagh suffered so much from the Northmen, that its great foundation had already in the twelfth century dwindled to a parochial church; in the nineteenth it is a green mound.

Glendalough, founded by the celebrated St. Kevin,[21] became also a college of much note. St. Moling, to whom a great number of Irish poems[22] are ascribed, was one of his successors in the seventh century, and his life seems to have taken peculiar hold upon the imagination of the populace, for he has more poems—many of them evident forgeries—attributed to him than we find ascribed to any of the saints except to Columcille; and he has a place amongst the four great prophets of Erin.[23] It was he who procured the remission of the Boru tribute from King Finnachta about the year 693. Glendalough was plundered and destroyed by the Danes five times over, within a period of thirty years, yet it to some extent recovered itself, and the great St. Laurence O'Toole, who was Archbishop of Dublin at the coming of the Normans, had been there educated.

Lismore, the great college of the south-east, was founded by St. Carthach in the beginning of the seventh century, who left behind him, according to O'Curry, a monastic rule of 580 lines of Irish verse.[24] Cathal, or Cathaldus, born in the beginning of the seventh century, who afterwards became bishop and patron saint of Tarentum, in Italy, was a student, and perhaps professor in this college. The office of St. Cathaldus states that Gauls, Angles, Irish, and Teutons, and very many people of neighbouring nations came to hear his lectures at Lismore, and Morini's life of him expresses in poetic terms the tradition of Lismore's greatness.[25] St. Cuanna, another member of Lismore, was probably the author of the Book of Cuanach, now lost, but often quoted in the Annals of Ulster. He died in 650, and the book is not quoted after the year 628, which makes it more than probable that he was the author. Lismore was burnt down by the Danes, but recovered itself in the general revival of native institutions that took place prior to the conquest of the Anglo-Normans. However, when these latter came upon the Irish stage it fared ill with Lismore. Strongbow, indeed, was bought off from burning its churches in 1173 by a great sum of money, but in the following year his son, in spite of this, plundered the place. Four years later the English forces again attacked it, plundered it, and set it on fire. In 1207 the whole town and all about it was finally consumed, so that at the present day not a vestige remains behind of its schools, its cloisters, or its twenty churches.

Cork college was founded by St. Finnbarr towards the end of the sixth century. One of its professors, Colman O'Cluasaigh, who died in 664, wrote the curious Irish hymn or prayer mixed with Latin, preserved in the Book of Hymns.[26] The place was burned four times between 822 and 840, but in the twelfth century the ancient monastery which had fallen into decay was rebuilt by Cormac Mac Carthy, king of Munster, and builder of the celebrated Cormac's Chapel at Cashel.

The school of Ross was founded by St. Fachtna for the Ithian tribes[27] of Corca Laidhi [Cor-ka-lee] in South-west Munster. Ross is frequently referred to in the Annals up to the tenth century. There is extant an interesting geographical poem in Irish, of 136 lines, written by one of the teachers there in the tenth century, and apparently intended as a kind of simple text to be learned by heart by the students.[28] Ross was plundered by the Danes in 840, but appears to have been flourishing until North-west Munster was laid waste by the Anglo-Normans under FitzStephen, after which no more is heard of its schools or colleges.

Innisfallen was founded upon an exquisite site on the lower lake of Killarney by St. Finan.[29] The well-known "Annals of Innisfallen," preserved in the Bodleian Library, were probably written by Maelsuthain [Calvus Perennis] O'Carroll, the "soul-friend" of Brian Boru, who inserted the famous entry in the Book of Armagh.[30] It is probable that Brian himself was also educated there. This monastery, owing to its secure retreat in the Kerry mountains, appears to have remained unplundered by the Norsemen, and to have been accounted "a paradise and a secure sanctuary."

Iniscaltra is a beautiful island in the south-west angle of Loch Derg, between Galway and Clare, still famous for its splendid round tower. It was here Columba of Terryglass, who died in 552, established a school and monastery which became so famous that in the life of St. Senan seven ships are mentioned as arriving at the mouth of the Shannon crowded with students for Iniscaltra. It was this Columba who, when asked by one of his disciples why the birds that frequented the island were not afraid of him, made the somewhat dramatic answer, "Why should they fear me? am I not a bird myself, for my soul always flies to heaven as they fly through the sky." Columba had a celebrated successor called Caimin, who died in 653. Ussher, who calls him St. Caminus, tells us that part of his Psalter was extant in his own time, and that he had himself seen it "having a collation of the Hebrew text placed on the upper part of each page, and with brief scholia added on the exterior margin."[31]