Events from the year 1152 in Ireland.
Incumbents High King: Toirdelbach Ua Conchobair
Events Synod of Kells-Mellifont results in a national church organisation with four metropolitans (archbishoprics) and 36 sees, under the primacy of Armagh. The Archdiocese of Dublin, (), recognised as a metropolitan province in by the Synod of Kells. Diarmaid mac Murchadha elopes with Devorgill. Cloyne was recognised as a diocese at the Synod of Kells
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