1128 in Ireland

Incumbents

• High King of Ireland: Toirdelbach Ua Conchobair

Births

• St. Laurence O'Toole, or Lorcán Ua Tuathail, was born at Castledermot, County Kildare

Deaths

• Mac Aodh Ua Dubhda, King of Uí Fiachrach Muaidhe