License, verbatimCC0
The Cleveland Museum of Art: Open Access, Creative Commons Zero (CC0). Flagged share_license_status=CC0 in the museum's own record.
Pietro Bardellino (Italian, 1728–1810). Study for "The Apotheosis of Ferdinand IV and Maria Carolina, King and Queen of Naples" (for the Palazzo dei Regi Studi, Naples), c. 1781. The Cleveland Museum of Art.