Church of St. Curig was probably erected in the 13th century, and the first written mention about it appeared in 1254. Porthkerry was then a large port in which every monk, cleric, missionary or pilgrim, before leaving, stopped to pray for safe passage of the Bristol Channel waters. At the end of the 15th or at the beginning of the 16th century, a tower and porch were added to the church. In 1867, a thorough renovation of the building was carried out, during which the chancel arch was rebuilt in the presbytery, the roof was replaced and the sacristy was added.
The church was erected on the plan of a typical small village temple with a rectangular nave and a narrower, rectangular chancel on the eastern side. On the western side, in the 15th / 16th centuries, a tower with a prominent parapet on corbels and a battlement was built (reconstructed in 1958). In the same period, a porch was erected at the southern entrance to the nave. The church has preserved a number of windows from the fifteenth century, among others, a two-light, pointed window in the east wall of the chancel, or a two-light window in a rectangular frame in the western wall of the tower.
Website britishlistedbuildings.co.uk, Church of St Curig A Grade II Listed Building in Rhoose, Vale of Glamorgan.