 Llys Rhosyr was a commotal centre before Edward I of England's conquest of Wales and debate now surrounds the former use of the Rhosyr site.Archaeologists at Gwynedd Archaeological Trust consider it to have been a royal home and have established an exhibition in the Pritchard-Jones Institute in the village on their findings supporting this theory.Excavations reveal that the enclosure had a hall, accommodation and storage barns, originally built in stone and wood.