The church lies in isolation on the southern bank of the river Usk alongside the B4458 east of Talybont. The first reference to the building was in 1291. The setting, the elongated shape of the original churchyard and the fascinating inscribed pillar stone all point to an early medieval origin. It is a simple building with a Victorian bell cote at the western end. There is some disagreement regarding the saint to which the church is dedicated; the choice being between St Dedyw a relation of the legendary King Brychan, or St Tetta a C6th abbess of Wimbourne. On hearing that Charles 2nd had returned to Britain a Puritan Colonel Jenkin Jones allegedly fired his pistol at the church door – a hole remains to this day. An area of the grave yard has been given as the last resting place for the 310 ex-servicemen whose days ended at Crossfield House a British Legion care home. (now back to Buckland House)