Timeline

Heritage classified

Key figures

Origin and history

The church of Saint-Jean-Baptiste de Clermont-Dessous, located in the Lot-et-Garonne department in Nouvelle-Aquitaine, is a Romanesque religious building built in the 12th century (although some sources evoke an origin in the 11th century). It is distinguished by its octagonal dome at the crossroads of the transept, an architectural rarity in the Agenese region. Originally linked to a castle of which it shared the promontory, it played a defensive role thanks to its surveillance tower, while its south Romanesque gate, repaired between the 15th and 16th centuries, was later walled to the benefit of a western gate in 1783.

The church was a Benedictine priory dependent on the Abbey of Clairac, mentioned in 1520, before being ceded in 1604 by Henry IV to the chapter of the Basilica of Saint John of Lateran. Originally a castral chapel, in 1734 it retained a seigneurial liter around the nave and Gothic paintings in the choir, now missing. Damaged by lightning in 1822 (clocher repaired in 1823), it was restored around 1880 by architect Albert Courau, who removed the interior coatings and woodwork from the choir. Ranked a historic monument in 1908, it illustrates the evolution of a religious, seigneurial and defensive building.

Its cruciform plan, marked by a vaulted nave in a cradle and a slightly protruding transept, culminates under an original dome with eight unequal panels, supported by tubes in the shape of circular niches. The cul-de-four and the screw stairway leading to the bell tower complete this ensemble, where Romanesque influences and subsequent adaptations combine. The modifications of the 18th and 19th centuries (porch, restorations) testify to its continued use, despite the loss of its medieval decorations.

The archaeological and historical sources (Tholin, Courau, Dubourg-Noves) underline its importance in the local religious heritage, especially for its unique dome system in Agenais. The ancient descriptions, like that of the parish priest in 1734, evoke a richly decorated interior, now erased by the restorations of the nineteenth century. Its classification among historical monuments in 1908 devotes its heritage value, both architectural and historical.

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