
It was built in the second half of the 15th century by the Rohans, the nobles of Guémené and owners of Trefaven chateau, probably on the site of an original oratory. Over a crossing point, it was placed under the protection of Saint Christopher. Sober and gothic in style, it is made entirely of granite and comprised of a simple central nave with two semi-transepts that adjoin a later sacristy and aisle. The nave is covered with a blue-painted wood-panelled roof. It opens onto a three-sided chancel with three large windows. The bell tower reposes on nine Doric columns topped with triangular pediments pierced with trefoils and was rebuilt several times in the 19th century. It was rebuilt in the 1950s following damage in the Second World War.