Pertinax
Publius Helvius Pertinax (1 August 126 – 28 March 193) was a Roman emperor who reigned for 87 days from 1 January to 28 March 193, succeeding Commodus after his assassination on 31 December 192.[1][2] Born in Alba Pompeia in Liguria to the freedman Helvius Successus, a timber merchant, Pertinax initially worked as a grammar teacher before entering military service in his thirties.[3][1] He advanced rapidly through the ranks, serving as a cohort prefect in Syria, legionary tribune in Britain, and commander in Moesia, Dacia, and other provinces, earning adlection into the Senate and the suffect consulship in 175 under Marcus Aurelius.[2][3] As urban prefect of Rome in 189, Pertinax gained prominence, and following Commodus's murder by court conspirators, he was acclaimed emperor by the Senate with initial Praetorian support.[1] During his brief rule, he pursued reforms including selling Commodus's palace furnishings to replenish the treasury, abolishing treason trials, and attempting to restore discipline among the Praetorian Guard, whose privileges he curtailed.[3][1] These measures provoked a mutiny, leading to his assassination by 300 Praetorians on 28 March 193, which triggered the auction of the imperial title to Didius Julianus and the onset of the Year of the Five Emperors, a civil war that destabilized the empire.[2][1] Pertinax's rise from equestrian origins to the throne exemplified merit-based advancement in the Roman system, though his failure to secure military loyalty highlighted the precarious dependence of emperors on the Praetorian Guard and legions.[1]