Fort Carré is a 16th-century star-shaped fort of four arrow-head shaped bastions, that stands on the outskirts of Antibes.
The Romans probably built the first fortifications at Antibes. In 1553, a tower called la tour Saint-Florent was built around a pre-existing chapel. Henry III had four bastions added in 1565, whereupon it became Fort Carré (the squared fort).
In the 1680s, Vauban strengthened Fort Carré, adding traverses to protect against ricochet fire and exchanging the stone parapets, which were liable to scatter deadly splinters when hit by shot, for brick ones. Vauban also enlarged the embrasures and added outer walls to the fortification.
Later, the fort's design was modified to take eighteen cannon. The entrance to the fort is through a triangular work that protrudes from the walls, and which is loopholed and pierced by a heavy wooden door. From here, there is a narrow bridge that leads into the fort itself via the flank of one of the arrow-headed bastions. Inside, there are barrack buildings for officers and men as well as the ancient chapel, which has been preserved through the successive stages of military development of the site.
In addition to improving the defences of Fort Carré, Vauban fortified Antibes itself, adding a land front of four arrow-headed bastions around the town, as well as seaward fortifications, including a bastion on the breakwater closing the harbor.
During the French Revolution, Napoleon Bonaparte was briefly imprisoned here. In July 1794, after the violent overthrow of Robespierre, General Bonaparte was detained as a Jacobin sympathizer and held in Fort Carré for ten days. His friend and political ally, Antoine Christophe Saliceti, secured his release. Then in 1860, the fort played an important role when France annexed Nice.
Today Fort Carré is open to the public.
References:Sigmaringen Castle was first mentioned in the year 1077 in the chronicles of Petershausen monastery. The oldest parts of the castle are concealed beneath the alterations made during the 17th and the 19th centuries. The secret of the earliest settlement built on this defendable rock will never be fully revealed: large-scale excavation work would be necessary, which the extensive land development renders impossible. Judging from the many Roman remains unearthed in the area around Sigmaringen, the 12th century keep known as the 'Roman Tower' could be traced back to a Roman predecessor.
The castle remains that have been preserved (gate, great hall and keep) date back to the Staufer period around 1200. The castle remains were integrated into subsequent buildings. The foundations of the castle buildings are to a large extent identical to the surrounding castle wall.
These remains give us a good idea of how the castle might have looked during the 12th century.