Italian landscape with valley Nicolaes (Claes Pietersz.) Berchem (1620-1683)

The picture has something of this: people, cavalry, outdoors, landscape, seated, desert, recreation, daylight, mammal, mountain, sunset, sky, man, two, hill, rock, dawn.
Perhaps it’s a painting of a man riding on the back of a white horse on a dirt road in front of a desert landscape with a castle in the distance.