Commodus (/ˈkɒmədəs/; 31 August 161 – 31 December 192) was a Roman emperor who ruled from 177 to 192. He served jointly with his father Marcus Aurelius from 176 until the latter's death in 180, and thereafter he reigned alone until his assassination. His reign is commonly thought of as marking the end of a golden period of peace in the history of the Roman Empire, known as the Pax Romana. Commodus's assassination in 192, by a wrestler in the bath, marked the end of the Nerva–Antonine dynasty. He was succeeded by Pertinax, the first emperor in the tumultuous Year of the Five Emperors.