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Origin and history

The castral motte of Brion is an emblematic medieval site located in the Cézallier, on the town of Compains (Puy-de-Dôme), at 1,273 meters above sea level. This monument, classified among the castral remains, consists of an artificial mound surrounded by a ditch, a bassyard and a enclosure. It illustrates the defensive architecture typical of the early Middle Ages, designed to control a territory and assert seigneurial power in a region then marked by political fragmentation and noble rivalries.

This castle was the seat of an emerging seigneury at the hinge of the 10th and 11th centuries, associated with the family of Bréon (or Brion), one of the most influential noble lines of Auvergne in the Middle Ages. Their local authority was part of a network of feudal powers where the castral mots served as both aristocratic residences, administrative centres and symbols of domination over the surrounding rural populations. The site also preserves the traces of a fairground, a place of ancestral trade for at least the seventeenth century, highlighting the sustainability of its economic role.

The archaeological remains of Brion reveal a characteristic spatial organization: the central motte, probably surmounted by a wooden or stone tower, was protected by earthworks and ditches, while the lower yard housed ancillary buildings (housing, stables, or workshops). This type of arrangement reflects the strategic and logistical needs of the medieval lords, combining defence, habitat and resource management. The site, still marked by the presence of burons (traditional pastoral constructions), also bears witness to the adaptation of castral spaces to subsequent agro-pastoral uses.

Protected as historical monuments since 5 December 2016, the Biron Mott offers a remarkable example of the auvergnat castral heritage. Its inscription responds to the desire to preserve an architectural and landscape heritage, linked to the social and political history of the region. Written sources, such as the Archaeology Records (1980), and heritage databases (Merimée) underline its importance in understanding feudal dynamics in Auvergne between the 10th and 15th centuries.

Beyond its military dimension, the Brion site illustrates the evolution of social practices around medieval castles. The cattle fairs, attested since the 17th century on its designated field, show how these spaces have turned into economic gathering places, perpetuating a multi-sacular tradition. Today, the castral motte and its immaterial environment (goals, burons) form a coherent heritage complex, reflecting the successive strata of occupation and use of a medium mountain territory.

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