411 REFERENCE · Wikipedia
1140 in Ireland
Reference material by Wikipedia contributors. This retains its source identity and is not 411 news reporting.
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1140
January 2026
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.Part 24 of Annals of the Four Masters https://celt.ucc.ie/published/T100005B/text024.html 2026-01-15 celt.ucc.ie
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)
References
1140