Events from the year 1674 in Ireland.
Incumbent Monarch: Charles II
Events May 5 – The Hospital and Free School of King Charles II opens in Dublin.
Births Mary Davys, novelist and playwright (died 1732)
Deaths September 9 – Murrough O'Brien, 1st Earl of Inchiquin, a chieftain of the O'Briens and Protestant native Irish peer (born c. 1618)
References