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Heritage classified

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Origin and history

Sainte-Céronne Church, located in Sainte-Céronne-lès-Mortagne, Orne, is a Catholic building built in the 12th, 16th and 17th centuries. It was erected on Mount Romigny, at the site of an oratory housing the tomb of Saint Cerone, a major figure in the evangelization of the Perch in the fifth century. His atypical architecture, not oriented, earned him the nickname "Sainte-Céronne la maltour". Designed as a monumental shawl, it was the first monastery of nuns in the region, with a simple structure: unique nave ended with a round apse, illuminated with windows and reinforced by foothills added to stabilize the building threatened by landslides.

Ranked a historic monument in 1975, the church retains remarkable elements such as a high altar, a tabernacle and a 17th and 18th century altarpiece, also classified. The tower, supported by Romanesque foothills, is surmounted by a roof in a building pierced by Renaissance skylights. The exterior gate, in grey, and the one giving access to the church are decorated with typical 12th century archivolts, with roughness and billets. Inside, two painted wooden reliquary busts house the bones of Saint Cerone and, probably, his biographer Saint Adelin. A double arched liturgical swimming pool, dating from the 13th century, is dug near the altar.

According to tradition, Saint Cerone, established in the area around 441, had built an oratory to Christianize a pagan site. His body was buried there, and the bishop of Sées erected a first building towards the end of the tenth century. Rebuilt in the 12th century, the present church bears witness to this millennium history, combining local legends and architectural heritage. Subsequent modifications, such as the northern foothills or Renaissance skylights, reflect the necessary adaptations to preserve it. Today, it remains a place of memory and devotion, managed by the municipality and open to the public.

The building also illustrates the conservation challenges associated with its geographic environment. The neighbouring ravine, dug by erosion, weakened foundations, requiring structural reinforcements such as the northern foothills. These developments, added after the initial construction, reveal the ingenuity of the builders to preserve a sacred place despite natural constraints. The simple tore cornice and the fern apparatus visible on the southern wall are architectural details characteristic of Norman Romanesque art.

The liturgical furniture, including the altarpiece and the reliquary busts, highlights the church's cultural importance. These objects, classified individually, complement the heritage value of the site. The presence of relics, like those of Saint Cerone, makes it a historic pilgrimage site, although less known than other regional shrines. The Association Les Amis de Sainte-Céronne is now contributing to its development, organizing visits and documenting its history.

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