In the seventeenth century County Tipperary was a palatinate, ruled by James Butler, duke of Ormond. When the duke decided he needed a new courthouse, he built one in the heart of Clonmel. Later, when it was used as a barracks, it became known as the Main Guard. A fine two-storey symmetrical building, some elements of its design were based on works by the famous Sir Christopher Wren. In the eighteenth century it was the venue for the Clonmel Assizes. The most notable trial it witnessed was that of Father Nicholas Sheehy, the anti-Penal Laws agitator. Sheehy was hanged, drawn and quartered. In about 1810, the ground floor was converted into shops, but the building has recently undergone an award-winning restoration. The open arcade of sandstone columns is once again an attractive feature of the streetscape, while inside you will find a fantastic exhibition and event space.