Events from the year 1140 in Ireland.
Incumbents High King: Toirdelbach Ua Conchobair
Events A descendant of Patrick made a visitation to Connaught for the first time, and was praised. A battle was fought by the foreigners of Ath-cliath, over the foreigners of Port-Lairge, in which the son of Mac Tormair was slain.
Deaths Domhnall Ua Sealbhaigh, airchinneach of Corcach Raghnall, grandson of Dubhdara, chief of Muintir‑Eolais (killed in conflict).Mac Carthaigh’s Book, ed. Séamus Ó hInnse (Dublin Institute for Advanced Studies)
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