The Conciergerie () () is a former courthouse and prison in Paris, France, located on the west of the Île de la Cité, below the Palais de Justice. It was originally part of the former royal palace, the Palais de la Cité, which also included the Sainte-Chapelle. Two large medieval halls remain from the royal palace. During the French Revolution, 2,780 prisoners, including Marie-Antoinette, were imprisoned, tried and sentenced at the Conciergerie, then sent to different sites to be executed by the guillotine. It is now a national monument and museum. Gallo-Roman fortress to Royal Palace (1st to 10th century AD) In the 1st-3rd century AD, the Ile de la Cité became part of the Gallo-Roman city of Lutetia, on the opposite bank of the Seine. The island was surrounded by a wall, and a fortress of the Roman governor was built at the west end of the island. The Merovingian king Clovis installed his capital there, on the site of the Roman fortress. from 508 until his death in 511. The Carolingian monarchs moved their capital out of the city, but at the end of the 10th century, under Hugh Capet, Paris became the capital of the Kingdom of the Franks. He constructed a large new fortified residence, the Palais de la Cité, on the same site. Capetian Palace (11th-14th century) From the 11th to the 14th century, the palace was enlarged and embellished, and gained in importance in the administration of the Kingdom. Before he departed on the Crusades, Philip II of France delegated his legal authority the Curia Regis, which had regular assemblies, called Parlements, in the Hall of the King, to dispense justice.He moved the royal archives to the building, giving it even greater importance, and named a Concierge, or custodian, to oversee the administration of the palace, which gave the building its name. Philip II created the towered facade on the Seine river side and the great hall. The great hall, with its two side-by-side naves, was used for royal ceremonies and judicial sessions. At one end was an immense table of black marble from Germany,decorated with fleurs-de-lis emblems. A piece of the table is now displayed on the wall of the lower hall. The hall was also decorated with polychrome wooden statues of the Kings of France. The "Grand Chronicles of France" by Jehan de Jandun described "A new palace, a marvellous and costly