In 1589, Maréchal de Villars supervised the construction of a small fort on the hill known as 'colline des Moulins' overlooking Saint-Tropez. This fort was destroyed in 1595, but the military engineer Raymond de Bonnefons chose the same site to build further defensive structures from the start of the 17th century.
The hexagonal tower, which formed an essential part of the village's defence system, was erected between 1602 and 1607. The Citadel underwent numerous modifications over the centuries, before falling into disuse in the 19th century, when the strategic interest of this perfectly-preserved fortress finally diminished.
The old cannons are still in place facing out towards to sea, and the views from the top are stunning across the Gulf and the Mediterranean Sea.
Bought up by the town in 1993 and made a listed monument, today it hosts a museum dedicated to the history of Saint Tropez and its relationship with the sea.
References:Saint-Georges de Boscherville Abbey is a former Benedictine abbey. It was founded in about 1113 by Guillaume de Tancarville on the site of an earlier establishment of secular canons and settled by monks from the Abbey of Saint-Evroul. The abbey church made of Caumont stone was erected from 1113 to 1140. The Norman builders aimed to have very well-lit naves and they did this by means of tall, large windows, initially made possible by a wooden ceiling, which prevented uplift, although this was replaced by a Gothic vault in the 13th century. The chapter room was built after the abbey church and dates from the last quarter of the 12th century.
The arrival of the Maurist monks in 1659, after the disasters of the Wars of Religion, helped to get the abbey back on a firmer spiritual, architectural and economic footing. They erected a large monastic building one wing of which fitted tightly around the chapter house (which was otherwise left as it was).