Église Saint-Martin du Lion-d'Angers, Medieval Catholic church in Le Lion-d'Angers, France

Église Saint-Martin-de-Vertou du Lion-d'Angers joins an 11th-century Romanesque nave of small roussard sandstone and porphyry blocks to a neo-Gothic choir of large tuffeau and white limestone blocks built in 1875. The whole is about 60 m long and 25 m wide at the choir. A square-based Romanesque bell tower, 7 m wide, stands against the south wall beside the Gothic baptismal chapel; its spire was rebuilt in 1997.

The church was built in the 11th century and given to Benedictine monks of Saint-Aubin Abbey between 1010 and 1030. Over the centuries it underwent significant changes, especially in the 19th century when the choir was rebuilt in neo-Gothic style.

The wall paintings were rediscovered in 1852 and date from the late 15th to early 16th century, created under the influence of King René of Anjou and Saint-Aubin Abbey. They originally covered the nave; those on the south wall are not preserved. The former choir, destroyed in 1875, has not been studied.

The church stands on the Place de l'Église in Le Lion-d'Angers, oriented on a slightly tilted north-west to south-east axis. The former priory, much altered, still adjoins the north transept. The building is about 60 m long and 25 m wide at the choir, sacristy excluded. The nave and bell tower are the oldest parts; the 1875 neo-Gothic choir and transepts are separately listed.

The organ was built by Aristide Cavaillé-Coll in 1883 and retains its original 17 stops. This instrument is a well-preserved example of 19th-century organ craftsmanship.