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1109 in Ireland
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1109
The following is a list of events from the year 1109 in Ireland.
Incumbents
High King of Ireland: Domnall Ua Lochlainn
Events
An army was led by the High King, with the people of Northern Ireland, to Sliabh. However, Ceallach, successor of Patrick, made a year's peace between Mac Lochlainn and Ua Briain; after which the people with the Cinel-Conaill and Cinel-Eoghain, proceeded to attack the Ulidians; who in turn gave them the three hostages which they themselves selected.February 2026
Fighting is recorded among Leinster dynasties, involving the Uí Cheinnselaig rival Leinster factions. These conflicts are recorded as violent clashes.The Oxford Illustrated History of Ireland. Foster, RF. Oxford University Press, Oxford. 1989
Deaths
Maelisa Ua Cuillen, noble bishop of Northern IrelandPart 21 of Annals of the Four Masters https://celt.ucc.ie/published/T100005B/text021.html 2026-01-17 celt.ucc.ie
References
1109