Saint-Lazare Prison

Originally a leprosarium founded on the road from Paris to Saint-Denis at the boundary of the marshy area of the former River Seine bank in the 12th century. It was ceded on 7 January 1632 to St. Vincent de Paul and the Congregation of the Mission he had founded. At this stage it became a place of detention for people who had become an embarrassment to their families: an enclosure for "black sheep" who had brought disgrace to their relatives.
The prison was situated in the enclos Saint-Lazare, the largest enclosure in Paris until the end of the 18th century, between the Rue de Paradis to its south, the Rue du Faubourg-Saint-Denis to its east, the Boulevard de la Chapelle to its north and the Rue Sainte-Anne to its west . Its site is now marked by the Church of Saint-Vincent-de-Paul.

Wikipedia