Didius Julianus: The Man Who Bought an Empire
He walked into the Roman Senate a private citizen—and walked out emperor. All it took was the highest bid.

Unknown — "Marble statue of a girl" (1st or 2nd century CE), public domain
Empire for Sale
Didius Julianus didn’t seize power with troops or the Senate’s voice. He simply walked up to the Praetorian Guard and offered them more money than his rival. In a single night, Rome’s greatest honor was sold to the highest bidder.
The Cost of Power
It was 193 CE, and Rome’s elite soldiers murdered the emperor and auctioned off the throne. Julianus promised each guard a year’s salary—25,000 sestertii—just for backing him. The city erupted in outrage. Politicians, priests, and even the market-sellers howled at the news.
A Reign Measured in Days
Julianus’ rule lasted just nine weeks. When a real army marched on Rome, the Guards switched sides again—the emperor’s final bid was a plea for mercy that no one heard.
The Praetorian Guard, Rome’s elite soldiers, literally auctioned the empire after assassinating the previous ruler. Didius Julianus, once a well-respected senator, outbid his rival by promising each guard 25,000 sestertii. His reign was doomed from the start—Romans despised the spectacle and called for his blood.