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 Polish man in a long robe standing at right in profile, facing left, other Polish men to left, groups of horsemen to left in background and a castle to right in background, from "Various figures and lands" (Diverse figure e paesi), 1649. The Metropolitan Museum of Art.