The original small Celtic chapel was founded on the site of the church of St. David in the 6th century. After the founding of a Norman priory on Caldey around 1131, the monks rebuilt the Celtic chapel, including the older temple into the nave of the new church. Throughout the Middle Ages, the church of St. David was strongly associated with the priory, so when Henry VIII dissoluted the convent in the sixteenth century, the church declined. It was used for secular purposes, and for some time it served as a local forge. It was restored only in 1823 by Cabot Kynaston, and subsequent changes took place after the re-establishment of the Caldey Abbey in the early 20th century. From this period come, among others new stained glasses in church windows.
The church is a small, simple building. The porch leads to the nave from the western side, above which there is a round window opening and a bellcote for a single bell. On the eastern side, the church is ended with chancel, narrower and smaller than the nave.
Wooding J., Yates N., A Guide to the churches and chapels of Wales, Cardiff 2011.
Website britainexpress.com, Caldey Island, St David’s Church.