1674 in IrelandEvents from the year 1674 in Ireland.IncumbentMonarch: Charles IIEventsMay 5 – The Hospital and Free School of King Charles II opens in Dublin.BirthsMary Davys, novelist and playwrightDeathsSeptember 9 – Murrough O'Brien, 1st Earl of Inchiquin, a chieftain of the O'Briens and Protestant native Irish peer