1180 in Ireland

Events from the year 1180 in Ireland.

Incumbents

 * Lord: John

Events

 * Construction of Carrickfergus Castle begins.
 * St Mary’s Cathedral built in Limerick.

Deaths

 * 14 November – Laurence O’Toole
 * Muirgheas Ua hEidhin, King of Uí Fiachrach Aidhne