Knockgraffon Motte was an Anglo-Norman settlement in the 12th and 13th centuries, 6km north of the present day town of Cahir.
It is a man-made earthen mound and would have included a wooden structure on the summit. The motte was built by the English of Leinster beside the River Suir when they were on a raid against Donal Mor O'Brien, King of Thomond, in 1192.
It is said that, in earlier times, this may have been the location for the coronation of the Kings of Munster before Cashel took over this role. The motte is a National Monument but it has never been investigated archaeologically. If you visit the site it is well worth climbing to the top to appreciate the surrounding view.