1101 in Ireland

Events from the year 1101 in Ireland.

Incumbents

 * High King of Ireland: Domnall Ua Lochlainn

Events

 * Muirchertach Ua Briain of the Dál gCais proclaims himself High King of Ireland.
 * At the Synod of Cashel, Muirchertach Ua Briain grants Cashel to the church as the seat of a metropolitan bishop.
 * Muirchertach Ua Briain destroys the ringfort at Grianan of Aileach.
 * Sailors from overseas raid Scattery Island.
 * Gillafin mac Coulahan, King of Síol Anmchadha, is killed and succeeded by his predecessor's son, Diarmaid Ua Madadhan.

Deaths

 * Gilla na Naemh Ua Dunabhra, Chief Poet of Connacht.