Tiernan O'Ruarc, lord of Breffni, and an angle of Meath, including Athboy and the hill of Ward, was given him instead. Earlier in the same year, King Thorlogh had divided Munster into three parts, giving Desmond to MacCarthy, Ormond to Thaddeus O'Brien, who had fought under him at Moanmore, and leaving the remainder to the O'Brien, who had only two short years before competed with him for the sovereignty. By these subdivisions the politic monarch expected to weaken to a great degree the power of the rival families of Meath and Munster. It was an arbitrary policy which could originate only on the field of battle, and could be enforced only by the sanction of victory. Thorlogh O'Brien, once King of all Munster, refused to accept a mere third, and carrying away his jewels and valuables, including the drinking horn of the great Brian, he threw himself again on the protection of Murkertach of Aileach. The elder branch of the family of O'Melaghlin were equally indisposed to accept half of Meath, where they had claimed the whole from the Shannon to the sea. To complicate still more this tangled web, Dermid, King of Leinster, about the same time (A.D. 1153), eloped with Dervorgoil, wife of O'Ruarc of Breffni, and daughter of O'Melaghlin, who both appealed to the monarch for vengeance on the ravager. Up to this date Dermid had acted as a steadfast ally of O'Conor, but when compelled by the presence of a powerful force on his borders to restore the captive, or partner of his guilt, he conceived an enmity for the aged king, which he extended, with increased virulence, to his son and successor. What degree of personal criminality to attach to this elopement it is hard to say. The cavalier in the case was on the wintry side of fifty, while the lady had reached the mature age of forty-four. Such examples have been, where the passions of youth, surviving the period most subject to their influence, have broken out with renewed frenzy on the confines of old age. Whether the flight of Dermid and Dervorgoil arose from a mere criminal passion, is not laid down with certainty in the old Annals, though national and local tradition strongly point to that conclusion. The Four Masters indeed state that after the restoration of the lady she "returned to O'Ruarc," another point wanting confirmation. We know that she soon afterwards retired to the shelter of Mellifont Abbey, where she ended her days towards the close of the century, in penitence and alms-deeds.