Kilaldriff Church Kilaldriff Church (it is known also as All-árd-Ríog. the church of the high king or All-A-'Oá-Ríog, the church of the two kings). It may have been the burial ground for Knockgraffon the once royal residence just across the river Suir. It is situated in the townland of Ballydrehid on the banks of the Aherlow. Only two side walls and one gable are not standing. The side walls are from six to twelve feet in height, the end wall is about twelve feet high. The walls are about one foot in thickness. The walls were muchAnaithnid