English: One of a number of memorial stones in the sanctuary wall of St Tudclud's, which it is believed, date to the late 5th and 6th century A.D. Written in Latin they probably commemorate important people. The words suggest contact between the early Welsh Church and Christians in Southern Gaul. This one in particular, known as The Carausius Stone, stood for many years at the nearby Rhiwbach Slate Quarry. It bears the CHI RHO symbol and only one other such stone, Treflys, has been found in Wales. In fact only twelve examples have been found in Britain. The symbol is a monogram from the first two letters of the Greek word for Christ. Early Christians preferred not to use the symbol of the Cross as this was seen as a pagan symbol of capital punishment. The translation of the horizontal inscription reads Carausius lies here in this heap of stones. It is not known when the stone was moved to St Tudcluds.