Conciergerie de Paris: Marie-Antoinette’s Prison Inside a Medieval Royal Palace

Discover how this historic landmark evolved over centuries

Long before it became one of the French Revolution’s most infamous prisons, the Conciergerie was the beating heart of medieval royal power in Paris. Built as part of the Capetian royal residence on the Île de la Cité, its Gothic halls and soaring Tour de l’Horloge — home to Paris’s oldest public clock — witnessed the transformation of the Palais de la Cité from a king’s home into the seat of French justice. When the Revolutionary Tribunal took over in 1793, the building’s cold stone cells held over 2,700 prisoners condemned to the guillotine, including Queen Marie-Antoinette herself. Today, visitors can walk through the vast medieval Grand’Salle, see a faithful reconstruction of the queen’s final cell, and use an interactive Histopad tablet to picture the palace as it stood eight centuries ago.