License, verbatimCC0
The Metropolitan Museum of Art: Open Access, Creative Commons Zero (CC0). Flagged isPublicDomain=true in the museum's own record.
Stefano della Bella. A shepherd with two horses and a peasant woman on horseback with a child in her arms to left, a large tree in center, from "Six large views, four of Rome and two of the Roman countryside" (Six grandes vues, dont quatre de Rome et deux de la Campagne romaine), ca. 1656. The Metropolitan Museum of Art.