Commodus was a Roman Emperor who ruled from 177 to 192 AD. He was the son of Marcus Aurelius, one of the most respected emperors in Roman history. Commodus is often remembered for his erratic behavior and for indulging in lavish games and spectacles, including participating in gladiatorial combat. His reign marked the beginning of the decline of the Roman Empire. Commodus' leadership style was characterized by a focus on personal glory rather than effective governance. He was eventually assassinated in 192 AD, leading to a period of instability known as the Year of the Five Emperors.