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Origin and history

The castle of Alleuze is an ancient medieval castle with its origins dating back to the 12th century, but its current remains date mainly from the 14th and 15th centuries. Located on the town of Alleuze in the Cantal, it was built on a promontory overlooking the river Alleuze, near the Grandval Dam. This castle, never a royal residence, served as an advanced military post to defend the citadel of Saint-Flour. It was occupied by soldiers and their captains, which explains its isolation away from inhabited areas, a factor that contributed to its partial preservation despite the destruction suffered.

In the 12th century, the castle belonged to Béraud VIII de Mercœur, connétable d'Auvergne, before passing under the control of the bishops of Clermont. In 1277 Guy de la Tour, bishop of Clermont, acquired the neighbouring village of La Barge and transformed the castle into a protective outpost. The current remains of the lower level date from this period. During the Hundred Years' War, the castle was the target of mercenaries: in 1382 or 1383, Aymerigot Marchès or Bernard de Garlan, according to the sources, seized with a handful of men, sowing terror in the area. In 1390 Jean de Blaisy negotiated his evacuation on behalf of the king of France. To avoid further occupation, the inhabitants of Saint-Flour burned down the castle in 1405, before being forced to rebuild it in 1411 on its original plan.

The castle was destroyed again in 1405 by Pierre Mercier, who spread the rumor of an English catch, triggering a panic in Saint-Flour. The city lost the subsequent trial and had to finance its reconstruction. In 1575 the Huguenots seized the castle, and its towers were used as jails by the bishops of Clermont. Archambaud de Bourbon acquired it to station soldiers to secure Saint-Flour. Today in ruins, the castle has been listed as historical monuments since 1927 and maintains a characteristic 14th century plan: a square flanked by round towers.

The site also served as a setting for several films, including La Grande Vadrouille (1966) and Un homme de trop (1967) by Costa-Gavras. These films contributed to its reputation, while highlighting its preserved medieval atmosphere. The remains, accompanied by the chapel of Saint-Illide rebuilt in the 15th century, offer an architectural and historical testimony of the feudal period in Auvergne.

Alleuze Castle thus embodies a turbulent military history, marked by conflicts, reconstructions and a strategic function in regional defence. Its geographical isolation and its controlled state of ruin make it an emblematic monument of medieval auvergnat heritage, protected and enhanced for its historical and tourist interest.

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