License, verbatimCC0
The Metropolitan Museum of Art: Open Access, Creative Commons Zero (CC0). Flagged isPublicDomain=true in the museum's own record.
Adriaen Collaert. Plate 8: equestrian statue of Otho, seen from behind, his death scene in the background with him stabbing himself at right and the burning of his body at left, from 'Roman Emperors on Horseback', ca. 1587–89. The Metropolitan Museum of Art.