The Sack of Cashel, also known as the massacre of Cashel, took place on 15 September 1647 during the Irish Confederate Wars, when Cashel Castle in County Tipperary was taken by an Protestant Parliamentarian army commanded by the Earl of Inchiquin. In what is considered one of the most brutal incidents of the war, survivors of the Catholic garrison were executed along with a number of civilians and the castle was sacked.