Inauguration stone in Ballybrennan

A glacial erratic, that was the inauguration stone of the MacGeoghegan clan, known locally as Mac Geoghegan’s Chair (Brewer 1826, 257). Not marked on any edition of the OS 6-inch maps. Situated on rolling pastureland with good views from NE-E-SE, restricted elsewhere by higher ground. Glacial boulder set on shoulder of natural hillock 315m NE of Ballybrennan House' (SMR file). Compiled by: Caimin O'Brien Date of upload: 06 March 2013

Dated to the early medieval period, the stone was used for the inauguration of the MacGeoghegan clan, reflecting a tradition of symbolic seating or standing stones in Irish kingship rituals. Local folklore associates the stone with the authority and legacy of the MacGeoghegan family in the region.