1542 in Ireland

Events from the year 1542 in Ireland.

Incumbent

 * Lord/Monarch: Henry VIII

Events

 * 15 February – 7/10 March: the Parliament of Ireland meets in Limerick and re-enacts the Crown of Ireland Act, declaring King Henry VIII of England and his heirs to be Kings of Ireland, for the benefit of Munster and Connacht.
 * February–March – first Jesuit mission to Ireland.
 * June 18 – Crown of Ireland Act 1542 is enacted, ending the Lordship of Ireland and creating the Kingdom of Ireland.
 * August 8 – St Macartan's Cathedral, Clogher, is created from the former abbey church.
 * September 7 – Bernard O'Higgins is consecrated as Roman Catholic Bishop of Elphin.
 * Dissolution of the Monasteries – establishments dissolved include:
 * Armagh Friary.
 * Ballintubber Abbey.
 * Claregalway Friary.
 * Fermoy Monastery.
 * Kells Abbey, Co. Antrim (1 February).
 * Kilcrea Friary (friars remaining in occupancy under protection of the MacCarthy family).
 * Knockmoy Abbey (24 May).
 * Movilla Abbey.
 * Rattoo Abbey, Ballyduff, County Kerry.
 * Timoleague Friary.
 * Woodburn Abbey, Co. Antrim (1 March).
 * Youghal Nunnery.
 * November 25 - Counties of Meath and Westmeath Act shires these two counties.

Births

 * Edmund O'Donnell, Jesuit martyr (k. 1575)

Deaths

 * August 9 – Margaret FitzGerald, Countess of Ormond, noblewoman.
 * Christopher St Lawrence, 5th Baron Howth, nobleman (b. c.1485)