License, verbatimCC0
The Metropolitan Museum of Art: Open Access, Creative Commons Zero (CC0). Flagged isPublicDomain=true in the museum's own record.
Gregorio Leti. Mary, Queen of Scots (from "Teatro Belgico, overo ritratti historici, chronologici, politici, e geografici, délie sette provincie unité," volume I, page 412), 1690. The Metropolitan Museum of Art.