The Roman Emperor who bought the throne at a public auction for 25,000 sesterces

History · Published 29 September 2026 Swipe more like this →

In short: In 193 AD, the Praetorian Guard auctioned the Roman Empire to the highest bidder. Didius Julianus won the title by promising 25,000 sesterces to every soldier. His reign lasted only 66 days, marking a chaotic turning point that shattered the illusion of imperial stability and triggered a brutal civil war.

Didius Julianus was a seasoned administrator who had governed provinces like Dalmatia and Germania Inferior, yet his legacy is defined by his final, desperate act of political opportunism. Following the assassination of Emperor Pertinax on March 28, 193, the Praetorian Guard turned the imperial throne into a commodity. Titus Flavius Claudius Sulpicianus, the prefect of Rome, began bidding for the position, but Julianus, barred from the camp, shouted his own offers from outside the gates. By promising a higher payout to the soldiers, Julianus secured the throne, an act that immediately rendered him a pariah in the eyes of the Roman public and the Senate.

His short rule was marked by economic instability and military rebellion. To fund his massive bribe to the Guard, Julianus devalued the Roman currency, reducing the silver content of the denarius from 87% to 75%. This decision reversed the reforms of his predecessor and set a precedent for the rampant hyperinflation that would plague the empire under the subsequent Severan dynasty. His authority was almost immediately challenged by three powerful generals: Pescennius Niger in Syria, Clodius Albinus in Britain, and Septimius Severus in Pannonia. Severus, being the closest to Rome, marched on the capital with his legions, effectively ignoring Julianus' attempts to negotiate a power-sharing agreement.

The end of his reign was as ignominious as its beginning. As Severus approached, the Praetorian Guard, realizing the futility of their position, abandoned Julianus. The Senate, sensing the shift in power, declared Severus the legitimate emperor and sentenced Julianus to death. On June 2, 193, he was executed in the palace by a soldier. His final moments were reportedly spent questioning the injustice of his fate, asking what crimes he had committed to deserve such an end. Following his death, the Senate issued a damnatio memoriae to erase his name from history, while Severus moved to purge the Praetorian Guard, ending the era of the auction-bought throne.

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