In 1170 it was the venue for the marriage of Richard de Clare, 2nd Earl of Pembroke ("Strongbow"), and Aoife Ní Diarmait.

[1] Since Christ Church Cathedral was subject to the Protestant Reformation, Roman Catholic adherents were consequently obliged to worship elsewhere.

In the 18th century, the city corporation recommended that the bishop erect a new building.

The architect was John Roberts, who was responsible also for the Catholic cathedral and for much of Georgian Waterford.

They were presented by the then Anglican bishop, the Rt Revd Richard Chenevix, to his Roman Catholic counterpart, the Most Revd Peter Creagh, and are now kept in the Museum of Treasures in Waterford and the National Museum in Dublin.