Electronic Texts. 1997. Ó Corráin, Donnchadh, Ireland before the Normans. Dublin: Gill and Macmillan. 1972. O'Donovan, John (ed. and tr.), Annála Ríoghachta Éireann. Annals of the Kingdom of Ireland by the Four Masters, from the Earliest Period to the Year 1616. 7 vols. Royal Irish Academy. Dublin. 1848-51. 2nd edition, 1856. O'Rahilly, Thomas F., Early Irish History and Mythology. Dublin Institute for Advanced Studies. 1946. Rynne, Etienne (ed.), North Munster Studies: Essays in Commemoration of Monsignor Michael Moloney. Limerick. 1967. Sproule, David, "Origins of the Éoganachta", in Ériu 35 (1984): pp. 31–37. External links Ancient Kings, Kingdoms, and Territories of Ireland Ptolemy's Geography of Ireland Kingdoms Irish kingdoms