At the extreme lower end of Loch Derg is the small but ancient town of Killaloe. Its real name is Cill Dalua, it was called after an ecclesiastic of the name of Dalua, sometimes written Malua, who lived in the sixth century. He placed his disciple, Flannan, over the church. He was made Bishop of Killaloe in the seventh century. The church is known generally as St Flannan's. The Earl of Dunraven, speaking of the beauty of the ruins of this church and the buildings attached to it, says, "These ancient buildings are on a wooded hill which slopes in a gentle incline down to the brink of the Shannon. The cathedral and small stone-roofed church stand side by side, and the walls of the latter are thickly covered with ivy. Nothing can be more impressive than the aspect of this venerable and simple building, surrounded by majestic trees, and hidden in deep shadows of thick foliage. A solemn mystery seems to envelop its ancient walls, and the silence is only broken by the sound of the river that rolls its great volume of water along the base of the hill on which it stands." But the most historic and probably the most interesting thing about Killaloe is the site of King Brian's palace of Kincora, a place so famed in history and song. Perhaps it will be better to let such a famous man on Irish history and archæology as O'Donovan tell about Kincora. He says in his unpublished letters while on the Ordnance Survey: "On the summit of the hill opposite the bridge of Killaloe stood Brian Boramha's palace of Kincora, but not a trace of it is now visible. It must have extended from the verge of the hill over the Shannon, to where the present Roman Catholic chapel stands. I fear that it will be impracticable to show its site on the Ordnance map, as no field works are visible. Of the history of the palace of Kincora little or nothing is known, but from the few references to it we occasionally find, we may safely infer that it was first erected by Brian, _Imperator Scottorum_, and that it was not more than two centuries inhabited by his successors. Kincora was demolished in 1088 by Donnell MacLachlin, king of Aileach (Ulster), and we are told that he took 160 hostages consisting of Danes and Irish." Kincora must have been rebuilt after it was demolished by MacLachlin, for we are told in the Annals of the Four Masters that in 1107 Kincora and Cashel were burned by lightning, and sixty vats of metheglin and beer were destroyed; but it must have been again rebuilt, for the same annals say that in 1118 Turloch O'Connor (King of Connacht), at the head of a great army of Connachtmen, burned Kincora and hurled it, both stones and timber, into the Shannon. Kincora was, like all dwelling-places in those times, built almost entirely of wood; and it is hardly to be wondered at that after having been burned so often by man and by the elements, no vestige of it should remain. It has been completely wiped out.