The hill of Allt Cunedda close to Cydweli in Carmarthenshire is probably associated with this Cunedda and suggests his campaigns against the Irish extended from Gwynedd into to south west Wales.
Much of the archaeological evidence was inadvertently destroyed by J. Fenton's expedition in 1851 and it is not known if all the great men buried at this site were contemporaries or if there were successive burials on a site with long term cultural significance.