The Romanesque church of Rioux-Martin dates back to the end of the 12th century. Initially dedicated to the Holy Trinity, in the 19th century it was dedicated to Saint Eutrope.
It has a three-tiered arcaded façade, largely inspired by that of Angoulême Cathedral.
Its impressive spire-shaped bell tower, in the Limousin style, is 13 metres high. It was exposed to lightning damage and has been repaired several times.
The monument was classified as a "Monument Historique" in 1875.