To return: Conor O'Melaghlin could not see, without deep-seated discontent, a Prince of Leinster assume the rank which his father and several of his ancestors had held. A border strife between Meath and Leinster arose not unlike that which had been waged a few years before for the deposition of Donogh, between Leinster and Ossory on the one part, and Munster on the other. Various were the encounters, whose obscure details are seldom preserved to us. But the good fortune of Dermid prevailed in all, until, in the year 1070, he lost Morrogh, his heir, by a natural death at Dublin, and Gluniarn, another son, fell in battle with the men of Meath. Two years later, in the battle of Ova, in the same territory, and against the same enemy, Dermid himself fell, with the lord of Forth, and a great host of Dublin Danes and Leinster men. The triumph of the son of Malachy, and the sorrow and anger of Leinster, were equally great. The bards have sung the praise of Dermid in strains which history accepts: they praise his ruddy aspect and laughing teeth; they remember how he upheld the standard of war, and none dared contend with him in battle; they denounce vengeance on Meath as soon as his death-feast is over—a vengeance too truly pursued. As a picture of the manners and habits of thought in those tunes, the fate of Conor, son of Melaghlin, and its connection with the last illness and death of Thorlogh O'Brien, are worthy of mention. Conor was treacherously slain, the year after the battle of Ova, in a parley with his own nephew, though the parley was held under the protection of the _Bachall-Isa_, or Staff, of Christ, the most revered relic of the Irish Church. After his death, his body was buried in the great Church of Clonmacnoise, in his own patrimony. But Thorlogh O'Brien perhaps, from his friendship for Dermid, carried off his head, as the head of an enemy, to Kinkora. When it was placed in his presence in his palace, a mouse ran out from the dead man's head, and under the king's mantle, which occasioned him such a fright that he grew suddenly sick, his hair fell off, and his life was despaired of. It was on Good Friday that the buried head was carried away, and on Easter Sunday, it was tremblingly restored again, with two rings of gold as a peace offering to the Church. Thus were God and Saint Kieran vindicated. Thorlogh O'Brien slowly regained his strength, though Keating, and the authors he followed, think he was never the same man again, after the fright he received from the head of Conor O'Melaghlin. He died peaceably and full of penitence, at Kinkora, on the eve of the Ides of July, A.D. 1086, after severe physical suffering. He was in the 77th year of his age, the 32nd of his rule over Munster, and the 13th—since the death of Dermid of Leinster—in his actual sovereignty of the southern half, and nominal rule of the whole kingdom. He was succeeded by his son Murkertach, or Murtogh, afterwards called _More_, or the great.