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Heritage classified

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Origin and history

The Church of the Trinity of Clisson, mentioned since 855, is one of the oldest religious buildings in the city. Originally attached to a Benedictine priory dependent on the abbeys of Saint-Martin de Vertou and Saint-Jouin de Marnes, it was built in 1105 before being profoundly redesigned over the centuries. His history was marked by his attachment in 1645 to the Benedictine sisters of Fontevrault, who established a college there and partially transformed the building, while preserving elements such as the cloister, the classified altarpiece and the oratory. It was then replaced by a more spacious choir, reflecting the liturgical adaptations of the time.

The French Revolution marked a dramatic turning point for the church: burned in 1794 by the Infernal Columns, it was then restored in the 19th century, notably in 1869 by architect Méchinaud. This work, although life-saving, strongly altered its medieval authenticity, giving it a neo-Roman aspect. The nave, with three ships and five spans, nevertheless preserves traces of the 12th century in its lower parts, while the dogive vaults and carved masks date back to 19th century restorations. The arms of the transept, less affected, preserve their original vaults, just like the northern absidiole.

The 17th-century choir, with a flat bedside and arched in a cradle, houses a richly decorated baroque altarpiece, reflecting the artistic influence of the period. A square chapel adjacent to the choir could be a vestige of an earlier 11th century building. Ranked a historic monument in 1997, the church thus illustrates almost a millennium of religious and architectural history, between destructions, reconstructions and successive adaptations.

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