The Church of the Holy Trinity or Christ Church, Cork, occupies the the site of one of the two ancient Parish Churches, once within the City walls It was also called the' King's Chapel,' and is mentioned as the Church of the Holy Trinity in the Decretal Epistles of Pope Innocent III., in the year 1199, and is rated in the Taxation of Pope Nicholas in that at fifteen marks. It was situated about 720 feet within the East wall of the City, and beside it was the College of Christ Church,long since removed.
The Church-yard and adjacent ground was, till lately, within a few inches of the surface, a marsh, and before the year 1830 the vaults were filled with water at the rise of every tide. When the present School-houses were erected, a few years ago, a large and deep pit was discovered, in which was some cartloads of human remains, mixed with the bones of horses, most probably deposited there after the siege of Cork by the Duke of Marlborough, Sept 28, 1690. If we except some fragments of old walls in the crypt, no part of the ancient structure now remains. The present Church was built in 1717, and arranged internally with the present front and entrance added,by an applotment on the parish, made 6th October, 1827, for £3,500 6s., at a rate of 1s.10d. in the pound gross valuation.