1156 in Ireland

Events from the year 1156 in Ireland.

Incumbents

 * High King: Toirdelbach Ua Conchobair (died) then Muirchertach Mac Lochlainn

Events

 * Ruaidrí Ua Conchobair becomes King of Connacht

Deaths

 * Tairrdelbach Ua Conchobair (Turlough O’Connor), who had reigned as King of Connacht since 1106 and was a claimant to the High Kingship of Ireland. He was buried in Clonmacnoise.