The saint for whom the church is named is known by numerous other renderings, such as Cyngar, Dochau, Dochow, Dochwy, Dogwyn and Docco, amongst others.

The latest radiocarbon date of c. 782AD – c. 1024AD suggests that the burials continued at Llandough until the monastery became defunct in around the early 11th century.

[3] The present St Dochdwy's Church was designed by S. C. Fripp of Bristol and built by David Jones of Penarth for a cost of £2,600.

Fripp was inspired by William Butterfield's work on St Augustine's Church in Penarth, which was completed in the same year.

[4] The present church, which comprises a nave and a chancel with a north vestry, has a saddleback tower that has room for two bells.