1342 in Ireland

Events from the year 1342 in Ireland.

Incumbent

 * Lord: Edward III

Events

 * King Conchobhar of Tír Conaill is killed and succeeded by his brother, Niall.
 * Soldiers from Ireland are sent to campaign for Edward III in Brittany.
 * January 16 – May 18 Deputy justiciar John Morice campaigns against the Irish of Mide.
 * April 5 – 4th Earl of Kildare is granted livery of his lands.
 * after July 1
 * King Toirdhealbhacf Connacht restores Roscommon castle to William de Bermingham, the royal constable.
 * July 16 – September 4 – Deputy justiciar campaigns in Wicklow against the Ó Broin.
 * November 4 – King Toirdhealbhach of Connacht is deposed by Mac Diarmata (Eng. MacDermot) and Mac William Burke. Succeeded by Aodh mac Aodh of Clann Mhuircheartaigh.