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Origin and history

The castle of Aspremont is an ancient castle built in the first quarter of the 11th century by the Viscounts of Orthe, from the family of the Counts of Dax. Its name, Aspremont ("asper mons", or high mountain), reflects its strategic position on an isolated hill, overlooking the confluence of the Pau and Oloron gaves. This site, now located in the commune of Peyrehorade (Landes), was initially strengthened by two artificial mottes, one of which supported a seven-sided dungeon, characteristic of advanced medieval fortifications.

In the 12th century, a stone dungeon replaced the first wooden structures, marking a major architectural evolution. The castle then became the main residence of the Viscounts of Orthe, a role it retained until the 15th and 16th centuries. During this period, he suffered several assaults that accelerated his degradation, leading to his gradual abandonment in the sixteenth century. The current remains include a ruined mid-thirteenth century master tower, as well as traces of a second motte, probably associated with a more recent tower.

The seven-paned dungeon, built around 1250, has a hybrid plan: a rectangular base on the southeast side and a four-paned spur facing the northwest facing the plateau. This defensive device, designed to resist attacks, was definitively ruined in 1569, sealing the end of its military use. Today, the ruins of the castle of Aspremont offer a rare testimony of medieval castral architecture in the Landes, mixing feudal mottes and defensive innovations of the 12th–13th centuries.

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