Les Jacobins was built by St-Dominic to ensure the converted heretics didn't revert after the fall of Toulouse during the Albigensian Crusade.
Polychromatic decor in les Jacobins
Glass-filtered light on the inner walls of les Jacobins
Saint-Sernin Basilica is another of Saint-Dominic's post-crusade construction / evangelical efforts in Toulouse
St-Sernin Basilica organ
Scrolling grillwork is common on old-Toulouse façades