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Origin and history

The castle of Mercœur, located in Maillargues on the town of Allanche (Cantal), is a 15th century building built by the Mercœur family, an influential noble lineage in Auvergne. It succeeds a first fortress erected in the 12th century by the comtours of Apchon, local lords, subsequently reinforced by Mercœur to make it a strategic bastion. In medieval times, castles such as Mercœur served as checkpoints on commercial and military roads, especially in a border region like Auvergne, marked by feudal conflicts.

Its architecture, with its mâchicoulis and sled windows, reflects the defensive and aesthetic techniques of the late Middle Ages. The castle has undergone changes over the centuries, including the addition of a secondary staircase connecting a perpendicular building. However, in 1632 it was partially razed, probably in the context of the wars of Religion or conflicts between nobility and royal power.

Today, only a facade, a roof and some remains remain. Among the remarkable elements, the gothic door mummed and the shield adorned with three stars and a crescent moon recall the heraldic Mercœur. The monumental chimneys and mâchicoulis testify to its defensive role.

These architectural details justified its inscription in historic monuments in 1949. In the 20th century, the castle was studied by local historians such as Maurice Peschaud, who traced its history in Allanche, nine centuries of its history (1978). Today, although partly in ruins, it remains a symbol of the Cantalian heritage and attracts those passionate about medieval history.

The nearby neogothic chapel, with its stained glass window representing the castle, perpetuates its memory.

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