Llangefni / Llangevni

The Anglesey Heritage web site [www.angleseyheritage.org.uk] reports a 12th-century font in the porch of St Cyngar's. Illustrated in Thurlby (2006), who suggests the chalice shape of this basin "is probably indicative of an advanced date in the twelfth century." [NB: the basin is in poor shape, its surface much eroded by exposure to the elements, but still permits to discern a zigzag or sawtooth motif all around the upper rim moulding -- legend has that a church on this site was founded by St. Cyngar himself in the 6th century. The RCAHMW (1937) reported no pre-17th-century items inside the church, and there is no font mentioned in the National Gazetteer of 1868 or in Lewis' Dictionary of 1833 -- would this basin be from an earlier [Norman?] building, or from a nearby church?]