License, verbatimCC0
The Metropolitan Museum of Art: Open Access, Creative Commons Zero (CC0). Flagged isPublicDomain=true in the museum's own record.
Pieter Coecke van Aelst. Procession of Sultan Süleyman through the Atmeidan from the frieze Ces Moeurs et fachons de faire de Turcz (Customs and Fashions of the Turks), 1553. The Metropolitan Museum of Art.