Caracalla, like most emperors in the later period of the Roman Empire, had a less than ideal reign. He was a cruel man who had his own brother killed to avoid sharing the throne. In this marble sculpture, he furrows his brow and looks to the side in suspicion. That paranoia wasn't for nothing however, as he would go on to be assassinated six years into his reign. It is almost as if the sculptor was warning him to watch his back.
Photo credit / The Metropolitan Museum of Art Open Access New York, New York