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. Plate 19: a Polish nobleman in court dress, standing in center, seen from behind, another nobleman to right in background, from "Diversi Capricci", ca. 1644–47. The Metropolitan Museum of Art.