Note 369 — Chapter IV
Reading edition
Conor O'Brien, king of Thomond, and Cormac Mac Carthy, king of Desmond. See § 9, and p. 21, notes 1-3. Murtough O'Brien, king of Munster, fell into ill-health in 1114, and his brother Dermot attempted, evidently with some success, to seize the throne. Dermot died in 1118 and Murtough early in the following year. Turlough O'Conor, the powerful king of Connaught, promptly invaded Munster, and divided it into two vassal kingdoms, Thomond and Desmond. The former he gave to the sons of Dermot, of whom Conor was one, the latter to Teague Mac Carthy. Apparently Conor O'Brien soon established himself as sole king of Thomond, and Cormac Mac Carthy became king of Desmond on the death of his father, Teague, in 1124. We have seen that both of them were deposed in 1127, and quickly restored (§ 9 f.: see p. 21, n. 3; p. 23, n. 2). From that time Conor and Cormac were allies. Cormac married Conor's niece (A.T. 1138). Together in 1133 they invaded Connaught (A.F.M.), and the next year they made another successful expedition through Connaught into Ulster (then ruled by Conor O'Loughlin; see p. 40, n. 2), in the course of which they burned the church of Rathluraigh, now Maghera, co. Derry, near the border of the diocese of Armagh (D.A.I.). This expedition must be referred to hereafter (p. 51, n. 2). But Conor evidently aspired to be ardrí of Ireland, and he found it desirable to remove a possible rival. Accordingly Cormac was murdered by his father-in-law, Conor's brother, in 1138, and Conor became king of all Munster. He was now the most powerful prince in Ireland; but he died, after a lingering illness (Tundale, p. 42), in 1142, without attaining his ambition.
It is clear from the present passage that Conor O'Brien followed in the footsteps of his predecessors in the same family as a supporter of the new movement in the Irish Church. Cormac, as we know, was the friend and disciple of Malachy: his devotion to the Church is witnessed to by the beautiful edifice built by him at Cashel, still known as "Cormac's Chapel," which was consecrated in 1134; and by his title of "Bishop-King," which has been the subject of so much discussion. See Petrie, pp. 283-307; and for the crozier found in Cormac's supposed tomb, G. Coffey, Guide to the Celtic Antiquities of the Christian Period in the National Museum, Dublin, p. 64. But it must be added that the contemporary Vision of Tundale, which apparently emanated from Cormac's kingdom of Desmond, while bearing emphatic testimony to his generosity to "Christ's poor and pilgrims," charges him with heinous crimes strangely inconsistent with St. Bernard's sketch of his character (Tundale, p. 44 f.).