Dictionary of National Biography, 1885-1900/O'Brien, Donogh Cairbrech
O'BRIEN, DONOGH CAIRBRECH (d. 1242), king of Thomond, called in Irish Donnchadh Cairbrech Ua Briain, was son of Domhnall O'Brien [q. v.], king of Munster, and in 1208 betrayed his brother Murtogh to the English of Limerick, and succeeded him as king of Thomond. In 1210 he ravaged southern Connaught, together with the English of Munster under Geoffrey de Marisco [q. v.], and again invaded Connaught in 1225. In 1235 he repelled with partial success an English invasion of Thomond. He married Sadhbh, daughter of O'Cenneidigh, who died in 1240, and he had two sons: Turlogh, who died in 1242, the same year as his father; and Conchobhar [q. v.], who succeeded him as king of Thomond. He had one daughter, Finnguala, who married Toirdhealbhach O'Connor, and died in 1335. He is described in the chronicles at his death as ‘tur ordain agus oireachais deiscirt Ereann’ (‘tower of splendour and supremacy of the south of Ireland’). He showed his respect for literature by protecting Muiredhach O'Daly [q. v.], and his regard for religion by founding a Franciscan abbey near Ennis, co. Clare.
[Annala Rioghachta Eireann, ed. O'Donovan, vol. iii. Dublin, 1851; Annals of Loch Cé, ed. Hennessy (Rolls Ser.); Annals of Ulster, ed. MacCarthy (Rolls Ser.); Lewis's Topogr. Dict. of Ireland, vol. i. London, 1850.]
Dictionary of National Biography, Errata (1904), p.208
N.B.— f.e. stands for from end and l.l. for last line
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| 312 | i | 11 f.e. | O'Brien, Donogh C.: for March read de Marisco [q. v.] |