Painting of Vincent with Galley Slaves

The french site of the Congregation of the Mission contains the following notice. ” St. VIncent Catechizing the Galley slaves.”
The image is presented at the new “Musée des Prisons” (Museum of Prisons) opened recently at fontainbleau

http://www.famvin.org/cm/fr/FAMVINModeles/accueil/nllesbreves.html