In the 14th century, King Charles V had a fortress built in Vincennes, the new seat of royal power, protected by a wall more than a kilometre long, flanked by nine towers, and a deep moat. A symbol of the modern state, the Château de Vincennes asserted royal power whilst protecting the monarchs against uprisings in the capital. Inside the enclosure, there is an imposing keep defended by a moat, a châtelet and two drawbridges, several administrative, civil and military buildings, and a chapel. Vincennes was the heart of the French monarchy until 1682, when King Louis XIV preferred Versailles.