Charles-Caius Renoux was a French painter, lithographer, and illustrator. He first achieved success with paintings of medieval churches, particularly the ruins of cloisters and monasteries destroyed during the French Revolution , works for which he is still best known. Renoux also painted landscapes, large-scale battle scenes, and historical subjects, works which uniquely prepared him for the final phase of his career, the creation of spectacular dioramas , the "moving pictures" of the era. He also taught at the École des Beaux-Arts in Paris; his notable students included Narcisse Berchère and Hector Hanoteau .