What is the name of the Emperor that believed he was Hercules?

The Emperor who believed he was Hercules was Commodus, who ruled from 177 to 192 AD. He famously identified with the mythological hero, often dressing as Hercules in public and even participating in gladiatorial contests. Commodus' self-image and behavior contributed to his reputation as a controversial and eccentric ruler. His reign ended with his assassination, which marked the decline of the Roman Empire's stability.