Conciergerie is one of the oldest castles of Paris, formerly a part of the first royal palace on the ГЋle de la CitГ©. One of towers with conical roofs had been crowned with the first ever Parisian clock, now over 600 years old and still functioning. Royal court was moved to Le Louvre after the Jacquerie, during which young Charles V Valois witnessed the murder of his two councillors by rebels in 1337. Conciergerie had been turned into a prison, whose famous prisoners included Marie Antoinette, poet AndrГ© ChГ©nier, Georges Danton and Maximilien Robespierre. Today it is a popular museum.