License, verbatimCC0
The Metropolitan Museum of Art: Open Access, Creative Commons Zero (CC0). Flagged isPublicDomain=true in the museum's own record.
Battista Franco. The Abduction of Dejanira, at center in the arms of the centaur Nessus, Hercules at right shooting the centaur with an arrow, Achelous reclining with his cornucopia at lower right, ca. 1530–61. The Metropolitan Museum of Art.