License, verbatimCC0
The Metropolitan Museum of Art: Open Access, Creative Commons Zero (CC0). Flagged isPublicDomain=true in the museum's own record.
Baron Dominique Vivant Denon. Portraits of Jean-Baptiste-Joseph Gobel (1727-1794), Bishop of Paris in 1792-93, and Pierre-Gaspard Chaumette (1763-1794), Procurator of the Commune in 1792, sketched on the way to the guillotine, April 12, 1794., 1794. The Metropolitan Museum of Art.