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Origin and history

The so-called Louis XIV dread, situated on top of the municipalities of Biriatou and Urrugne, is a military fortification built between the 4th quarter of the 18th century and the 1st quarter of the 19th century. It overlooks the Bidassoa and the island of the Faisans, a symbolic place where the Treaty of the Pyrenees was signed in 1659. His name pays tribute to this historical context. The structure adopts an irregular pentagonal plane, with a parapet and a ditch in the ground, and dimensions up to 60 meters north to south and 90 meters east to west. It was a strategic issue during the Franco-Spanish wars of 1793-1795 and the Napoleonic campaigns of 1813-1814.

During the Franco-Spanish war of 1793-1795, the dread was the scene of several clashes. On 23 April 1793 it was attacked and taken by the Spanish troops of General Ventura Caro. The French, led by General Servan and the famous Theophile of La Tour d'Auvergne, took it again on 26 June 1793. Fighting continued, with repeated hand changes, illustrating the intensity of hostilities in this border area. The dread also served as a command post for Marshal Soult in 1813 during the Wellington offensives.

In 1813, as part of the campaign of the Western Pyrenees, the dread Louis XIV was a key point of the French defensive system against Anglo-Hispano-Portuguese troops. On 7 October 1813, it was violently attacked by the Allies, leading the French to abandon it and retreat to the Croix des Bouquets. This retreat was part of a broader strategy for defending the border, while Wellington sought to break through the French lines to advance towards Bayonne. The dread, now partially covered with vegetation, remains a testimony of the military fortifications of the time.

The dread Louis XIV has been listed as historical monuments since 18 November 1997. Its conservation status varies: the southwest side is degraded by vegetation, while the other parts remain visible. It is part of a wider set of fears built in the Atlantic Pyrenees to defend the border, reflecting the geopolitical tensions of the revolutionary and Napoleonic era. These works, often summary, were designed to house infantrymen and resist enemy assaults, although their effectiveness was limited in the face of massive offensives.

The Louis XIV dread site, although not visually accessible from the ground due to vegetation, retains major historical importance. It illustrates the military strategies of the time, where the heights were systematically fortified to control access routes and border crossings. The dread, with its architectural characteristics and its turbulent history, offers valuable insight into the conflicts that have marked this border region between France and Spain.

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