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Origin and history

The chapel of Calmont-d'Olt, located in Espalion (Aveyron), is a medieval vestige linked to the eponymous castle. Built between the 11th and 12th centuries, it was outside the lower enclosure of the castle, of which today it remains only a section of wall. This strategic site, perched at an altitude of 535 metres, dominated the Lot Valley and the city of Espalion, playing a key role in the defence and control of trade routes between Rodez, Aubrac and Lyon.

The castle and its chapel were adapted to military developments, especially during the Hundred Years War (XIVth–XVth centuries), with the addition of a low enclosure flanked by eight bastions. The chapel, mentioned in the 12th century, was associated with local seigneurial and religious life, as evidenced by the ties of the lords of Calmont with the Abbey of Conques or the hospital of Aubrac. Abandoned in the 17th century, the site ran gradually before being classified as a Historic Monument in 1992.

Archaeological excavations of the 21st century revealed Romanesque elements (archatures, archatures) confirming its high medieval origin. Today, the castle and the remains of the chapel are managed by an association that values the castral heritage roergat through historical animations, highlighting the political and daily life of the Middle Ages.

The toponymy of the site, Calmont, evokes a bare height (calm-), while Olt recalls the proximity of the Lot. The lineage of the Calmont d'Olt, which came from the Carolingian administration, died in 1297 with Raimond, bishop of Rodez. The castle then passed into the hands of noble families such as the Castelnau or the Clermont-Lodève, marked by conflicts such as the destructions of 1595 or 1624.

The chapel, although reduced to a wall, symbolizes the religious and symbolic importance of the site. Its location outside the lower enclosure suggests a vocation both spiritual (place of worship for lords and garrison) and strategic (point of assembly in case of siege). The archaeological and textual sources underline its role in the feudal organization of the Rouergue.

The classification of the site in 1992 and its progressive restoration since 1987 have preserved this rare testimony of the medieval castral and religious architecture. The remains of the chapel, associated with the reconstituted war machines (couillard, pierrieres), offer an immersion in the military and social history of the region, between the 11th and 15th centuries.

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