License, verbatimCC0
The Metropolitan Museum of Art: Open Access, Creative Commons Zero (CC0). Flagged isPublicDomain=true in the museum's own record.
Parmigianino (Girolamo Francesco Maria Mazzola). Seated Goddess Diana (recto); Studies of a Nude Male Torso Seen from the Rear, and a leg (verso), ca. 1522. The Metropolitan Museum of Art.