Commodus was born on August 31, 161 CE as Lucius Aurelius Commodus in Lanuvium. He was the son of Emperor Marcus Aurelius and Faustina. He had a twin brother, Aurelius Antonin, who died at the age of four. Husband of Bruttii Crispina. This was the first case of a son inheriting his father’s imperial position in many years, the first since Titus.