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Origin and history

The castle of Messac, located in Laroquebru in the Cantal, is a gentilhommière built at the end of the 15th century by Amaury and Guy de Sermur, lords of Glénat and Montvert. The building, composed of two wings articulated in square around a turret staircase, is a typical example of the Cantalian civil architecture of the late Middle Ages. It initially had three levels, including an attic, but lost its third floor in the 18th century. Two large stone chimneys per floor, still visible, bear witness to its past prestige.

The seigneury of Messac was first owned by the eponymous family in the 13th century, as evidenced by the acts involving Raymond de Messac (1262, 1283) or Guérin de Messac (1317). In the 15th century, a trial opposed Guy de Sermur to the heirs of Rigal de Messac, leading in 1478 to a compromise in favour of the Sermur. Amaury de Sermur obtained in 1480 the authorization to complete the construction of the castle on three levels, according to a seigneurial arbitration. The family of Sermur, already coseigneur of Glénat and Saint-Victor, was a lasting mark of the estate.

In the 16th century, the castle passed to the Palach by inheritance, then to the Beauclair via the marriage of Anne de Palach with Petre-Jean de Beauclair in 1598. The Beauclairs, a Protestant family converted to Catholicism (abjuration of Jacquette de Cat in 1626), retained Messac until the 18th century. Jean-Baptiste de Beauclair (1690–?) partially modernized the building, while his son Marc-Antoine, the last seigneur, died without descendants in 1787. The castle, registered with the Historical Monuments in 1972, now retains its facades, roofs and six interior chimneys.

The history of Messac reflects the alliances and conflicts of the noble families of Cantal, from the medieval Messacs to the Beauclairs of Enlightenment. Its architecture, blending residential and defensive functions, illustrates the evolution of the Auvergne genthummières between the Middle Ages and the modern era. The vegetable garden, mentioned as remarkable, completes this heritage complex.

The archival sources (Ribier, Bouillet, Archives Départementales du Cantal) and recent studies, such as Monique de La Rocque de Séverac (2015), finely document the vicissitudes of the domain. The castle remains a major witness to local seigneurial history, linked to figures such as Durand Palach (1596) or François de Beauclair (1688), whose wills illuminate the transmission of heritage.

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