Carl Ernst von Stetten was a German-French🎨 portrait and genre painter🎨 who worked in France and joined the Parisian atelier of Jean-Léon Gérôme🎨 in the 1880s.
He went to Paris in the 1870s for training, and there met Courtois and Dagnan-Bouveret🎨 at the studio of Gérôme; it was for Courtois and Stetten the beginning of a lifelong friendship.
The young Stetten posed for several portraits and was a model for works by his friend (and probable lover).