 The former Parisian prison was located between the current group of buildings bearing No.56 Rue de la Clef with Rue du Puits-de-l'Ermite in the 5th arrondissement of Paris at the old Place Sainte-Pélagie.The penal structure held many noted prisoners during the French Revolution, with Madame Roland, Grace Dalrymple Elliott and Marie-Louise O'Murphy being among the known prisoners.