Fort Socoa in Ciboure was originally built under the rule of Henry IV to protect the region from the Spanish. Fort Socoa today was however built later under the reign of Louis XIII. In 1636, the Spanish army took the fort. A few years later, French sovereignty was restored.
In 1686, Vauban strenghtened the Fort and planned to build a pier to improve access to the Fort. The work of the fort was ended in 1698. The site housed a barracks and a chapel.
References:The Château du Lude is one of the many great châteaux of the Loire Valley in France. Le Lude is the most northerly château of the Loire Valley and one of the last important historic castles in France, still inhabited by the same family for the last 260 years. The château is testimony to four centuries of French architecture, as a stronghold transformed into an elegant house during the Renaissance and the 18th century. The monument is located in the valley of Le Loir. Its gardens have evolved throughout the centuries.