The findspot of a slab incised with an inscription in Roman capitals which was found in 1782 when digging in the foundations of the old church.  It is now kept against the west wall of the present church (Slab No.29) and is known as the Avitus Stone.   It bears an inscription AVIT MONOMENT. It measures 113cm long x 23cm wide with a thickness of 11.5cm. This inscription is usually ascribed to the 5th or 6th century, but there is no firm evidence for such a date.