Lucius Aelius Aurelius Commodus became a Roman emperor on the 17th of March, 180 upon his father’s Marcus Aurelius death. Before this, Commodus was a co-emperor with his father for almost 3 years.

He was the first emperor to have both a father and grandfather (who had adopted his father) as the two preceding emperors.

Commodus is a very controversial figure in history. He was characterized as a cruel, callous and even inadequate man, who didn’t like to deal with state affairs preferring to devote himself to amusements and indulge in lust. He was assassinated in 192.

More Info: en.wikipedia.org