Bastion Waldeck was built in 1690 and the star-shaped fort was heavily remodifed in 1773-1777. However there has been fortifications also before; the most well-known incident on the site was the death of D'Artagnan (one of The Three Musketeers written by Alexandre Dumas in 1844) during the siege of Maastricht in 1673.
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.