Pertinax (Latin: Publius Helvius Pertinax Augustus; 1 August 126 – 28 March 193) was Roman Emperor for three months in 193. He is known as the first emperor of the tumultuous Year of the Five Emperors. A high-ranking military and Senatorial figure, he tried to restore discipline in the Praetorian Guards, whereupon they rebelled and killed him. Upon his death he was succeeded by Didius Julianus, whose reign was similarly short.
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