Who Was Hostilien?
Hostilien, also known as Hostilian or by his full name Caius Valens Hostilianus Messius Quintus, was a young Roman emperor who briefly ruled during a very chaotic time in Rome’s history. He was the son of Emperor Decius, and became a symbol of a fading dynasty during a time known as the “Crisis of the Third Century.” Although he ruled for only a short time, his story reveals much about Roman politics, imperial ambition, and the struggles of a collapsing empire.
His name is not as famous as Caesar or Augustus, but Hostilien’s life still matters in understanding how quickly power changed hands in ancient Rome. Many people forget that emperors like Hostilien existed because they reigned during hard times. He was not a powerful conqueror, but a young ruler caught in the middle of Roman power struggles, war, and even disease. His story is short, but very important in the bigger picture of Roman history.
Table of Contents
Early Life and Family Background of Hostilien

Hostilien was born into a powerful Roman family during a time when the empire was facing many problems. His full name was Caius Valens Hostilianus Messius Quintus, and he was the younger son of Emperor Decius and Empress Herennia Etruscilla. His older brother was Herennius Etruscus, who also became emperor for a short time. Being born into the royal family gave Hostilien a strong position in Roman politics, even though he was still very young. His early years were shaped by power, politics, and preparation for leadership in one of the world’s greatest empires.
Even though not much is known about his childhood, historians believe he was well-educated and raised in the traditions of the Roman elite. Roman emperors’ sons often received special training in speech, law, and military leadership. Hostilien’s family background gave him both opportunity and risk. His father’s reign was during a time of military chaos, and that meant the young Hostilien was raised not just as a noble, but as a future leader in an unstable world. The shadow of war, rebellion, and illness always hung close to him.
Rise of Hostilien: From Caesar to Co-Emperor
Hostilien’s path to power began when his father, Emperor Decius, named him Caesar in 250 AD. In Roman politics, this title meant he was a junior emperor and next in line for the throne. His brother, Herennius Etruscus, was named Augustus, making him co-emperor alongside their father. At this point, Hostilien was still a teenager, but already being prepared for rule. His position as Caesar showed how Decius hoped to build a dynasty and secure the empire’s future through his sons.
However, this plan did not last long. In 251 AD, both Decius and Herennius were killed in battle against the Goths at the Battle of Abrittus. Their sudden deaths left a power vacuum. To avoid conflict, a Roman general named Trebonianus Gallus was made emperor. But to keep peace with the people and the Senate, Gallus allowed Hostilien to become co-emperor. This made Hostilien Augustus—a full emperor—despite his young age. It was a bold move meant to unite the empire after a great loss.
Reign and Challenges Under Emperor Hostilien

Hostilien’s reign as co-emperor was very short, lasting only a few months in 251 AD. During this time, he shared power with Trebonianus Gallus, who became the senior emperor. While Hostilien held the title of Augustus, it is likely that Gallus held most of the real control. Hostilien was still very young and had little experience in military or political matters. His role was more symbolic—to represent peace, continuity, and the legacy of his father, Decius, who had died trying to protect Rome.
This period in Roman history was called the “Crisis of the Third Century,” and it was full of problems. The Roman Empire was dealing with constant invasions, rebellions, and a deadly disease that spread through the population. The plague was killing many people, including soldiers and citizens. It made ruling even harder. With pressure coming from all sides—both from enemies outside and problems inside—Hostilien’s short reign was full of difficulty, and there was little chance to make strong changes or leave a lasting impact.
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The Death of Hostilien: Plague or Conspiracy?
Hostilien’s death is one of the most mysterious parts of his story. Ancient sources disagree on what really happened. Some say he died from a terrible plague that was spreading across the Roman Empire. This disease had already killed many, including soldiers and leaders. It’s possible that Hostilien, young and maybe weak from stress, simply became another victim. The plague was known to move quickly and had no cure, so his sudden death would not have been unusual during this time.
However, other stories suggest something more troubling. Some Roman historians believed that Trebonianus Gallus, the man who shared power with Hostilien, may have had a hand in his death. They say Gallus might have feared that Hostilien, because of his family name and bloodline, could become too powerful or popular. In that case, removing him would keep Gallus in full control. There’s no proof of murder, but in Roman politics, such things were common. Whether by illness or conspiracy, Hostilien’s death ended his short life and reign before he could truly shape the empire.
Hostilien in Numismatics and Cultural Memory

Even though Hostilien ruled for only a short time, his memory has lived on—mainly through Roman coins. These coins, called numismatics, show his face and titles. They were made in gold (aurei), silver (antoniniani), and bronze (sesterces). His coins often had images of Roman gods like Mars, symbols of peace, or strength. These designs were meant to show the people that Hostili,en was a rightful and strong emperor, even if he was still a teenager at the time.
Collectors today value Hostili,en’s coins not just for their design, but for their rarity. Because he ruled so briefly, fewer coins were made. This makes them special pieces of history. Some collectors pay thousands of dollars for coins in good condition. These small objects are some of the only physical links we have to Hostili,en. Through them, we can still see his face, his titles, and how Rome tried to present him as a powerful young leader during one of its hardest times.
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Hostilien’s Historical Legacy and Modern Significance
Hostili,en’s legacy is often forgotten because his reign was short and came during a time of crisis. He did not lead great battles or pass new laws. Still, his life shows us how unstable the Roman Empire had become. He was born into power, but power in Rome was no longer safe or steady. Emperors came and went quickly, and Hostili,en’s rule reflects a world where youth, family name, and even the emperor’s title could not protect you from disease, betrayal, or war.
Today, historians view Hostili,en as a symbol of lost potential. His story helps us understand how fragile power was in the third century. He also reminds us of how emperors were sometimes more symbolic than powerful. Though he may not have left behind grand buildings or victories, the fact that people still study his life, collect his coins, and write his name means he was not truly forgotten. In many ways, Hostili,en’s short rule teaches us how quickly history can change—and how even the young can leave a trace behind.
FAQs
Who were Hostilien’s parents?
Hostili,en was the son of Emperor Decius and Empress Herennia Etruscilla. His family was deeply involved in Roman politics, and his older brother Herennius Etruscus was also briefly emperor. His noble birth gave him a place in the imperial line, even though he was still very young when he became co-emperor.
How long did Hostilien rule?
Hostili,en ruled as Caesar starting around 250 AD and as Augustus (full emperor) for only a few months in 251 AD. His reign ended suddenly—either because of plague or a possible political plot. His time as ruler was short, but still part of the wider Roman crisis of that era.
Did Hostilien achieve anything important as emperor?
He was too young and ruled for too short a time to make major changes. However, his co-rule helped stabilize the empire briefly after the death of his father and brother. His existence also helped calm tensions in Rome by keeping a link to the previous imperial family.
What happened to Hostilien’s memory after his death?
After his death, Hostili,en’s name didn’t appear much in historical records. However, his coins were preserved and are still studied by historians and collectors today. They serve as one of the few lasting reminders of his place in Roman history.
Conclusion:
Hostili,en’s story is one of promise cut short. Born into a ruling family, raised during one of the most dangerous times in Roman history, and given power before he was ready—his life reflects the struggles of a collapsing empire. Though he never led great campaigns or reformed the government, he represented the hope for stability during a time of chaos. His reign was brief, but not meaningless.
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