The church in Llangybi was probably founded in the 13th or 14th century, with a tower added a little later than the nave and chancel. In the fifteenth century it was rebuilt, from this period windows come, in the style of perpendicular gothic. Its equipment was replaced around 1700, but the building itself was not thoroughly renovated until 1909-1910, when the southern sacristy was also erected.
The church initially consisted of a rectangular, long nave and a lower and shorter, but more or less the same width, rectangular chancel. The tower on the west side, slightly embedded in the nave, was probably added at the end of the Middle Ages.
The tower was built on a square plan. It has two floors, a Gothic two-light windows on each side on the upper floor (crowned with ogee arches) and is topped with a decorative battlement. In its western wall there is the main entrance leading to the under-tower porch and further under the ogival arcade to the nave. A wide arcade with a very light pointed arch also separated the nave from the chancel.
The second entrance portal was located in the western part of the southern wall of the nave, located to the west of two large Gothic, pointed windows. A similar window was also pierced in the eastern wall of the chancel and on the north side. A three-light window topped with trefoils was pierced in the southern wall of the chancel.
The church has retained the walls of the original building and elements of architectural details from the late Gothic period, while the southern windows in the nave were thoroughly renovated in the 20th century, and one of the windows in the chancel was transformed. The sacristy on the south side is a completely modern element. Inside the church, medieval wall polychromes from the mid-15th century have been preserved, partially covered by inscriptions added in the 17th century.
Salter M., The old parish churches of Gwent, Glamorgan & Gower, Wolverhampton 2002.
Website britishlistedbuildings.co.uk, Church of St Cybi A Grade II Listed Building in Llangybi, Monmouthshire.
Website coflein.gov.uk, St Cybi’s church, Llangybi.