Rosa Bonheur (1822-1899) Study of a white horse from behind, n.d. Oil on canvas 61.5 x 50 cm Barbizon, Musée départemental des peintres de Barbizon, on deposit at By-Thomery, Château de Rosa BonheurCastle of Rosa Bonheur. Photo © Musée d’Orsay /Alexis Brandt