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The 9 worst Roman emperors in history

May 4th, 2023

Throughout its long and storied history, the Roman Empire produced some of the world's most iconic leaders.

While some emperors, like Augustus and Trajan, are remembered for their wise rule and military prowess, others are remembered for their cruelty, incompetence, and corruption.

Here, we delve into the darker side of Roman history by exploring the nine worst Roman emperors.

1. Nero (54-68 AD)
Nero's reign is infamous for its brutality and paranoia. He is remembered for the Great Fire of Rome, which he allegedly started to clear land for his palatial complex, the Domus Aurea.

Although the fire's cause remains a subject of debate, Nero did blame the Christians, leading to widespread persecution.

Nero was also known for executing members of his family, including his mother Agrippina, and was eventually forced to commit suicide after being declared a public enemy by the Senate.

2. Caligula (37-41 AD)
Caligula, whose real name was Gaius Caesar, ruled with a sadistic and erratic demeanor.

He was known for his extravagant spending, sexual depravity, and his desire to be worshiped as a living god.

His was known for his erratic behavior, such as declaring war on the sea, and attacking anyone that called him by his nickname "Caligula," meaning "little boots."

After his assassination, the Senate attempted to erase his memory from history.

3. Commodus (180-192 AD)
The son of the respected Emperor Marcus Aurelius, Commodus was a disappointment to both his father and the empire.

He was more interested in gladiatorial combat and self-glorification than ruling, often dressing as Hercules and fighting in the arena.

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His neglect of the empire led to widespread corruption, and he was ultimately strangled to death by his wrestling partner in a palace coup.

4. Elagabalus (218-222 AD)
Elagabalus was a teenage emperor known for his religious fanaticism and eccentricity.

He attempted to replace Jupiter with the sun god Elagabal as Rome's chief deity and forced high-ranking Romans to participate in his religious ceremonies.

Elagabalus was also notorious for his sexual escapades and cruelty, eventually leading to his assassination by the Praetorian Guard at the age of 18.

5. Caracalla (198-217 AD)
Caracalla's rule was marked by cruelty and paranoia. He was known for executing many of his perceived enemies, including his brother Geta, whose murder he ordered in front of their mother.

Caracalla's reign saw numerous military campaigns and the construction of the massive Baths of Caracalla in Rome.

His brutal rule ended with his assassination by a disgruntled soldier.

6. Tiberius (14-37 AD)
Tiberius, the second Roman emperor, began his rule with promise but quickly descended into tyranny.

He increasingly withdrew from public life, leaving the empire in the hands of the ruthless Praetorian Prefect Sejanus.

Tiberius spent the latter part of his reign on the island of Capri, indulging in debauchery and executing perceived enemies.

His brutal rule set the stage for the reign of his successor, Caligula.

7. Domitian (81-96 AD)

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Domitian, the younger brother of Titus, was a paranoid and cruel ruler.

He saw conspiracies everywhere and executed numerous senators and other high-ranking Romans on suspicion of treason.

His tyranny led to widespread unrest, and he was eventually assassinated by members of his own court.

8. Honorius (393-423 AD)
Honorius, one of the last Western Roman emperors, was a weak and indecisive ruler.

He depended heavily on his advisors, particularly the general Stilicho, who was the real power behind the throne.

Honorius's reign was marked by disastrous military defeats, including the sack of Rome by the Visigoths in 410 AD.

His failure to respond effectively to the growing threats facing the Western Roman Empire contributed to its eventual collapse.

9. Diocletian (284-305 AD)
Although Diocletian was a capable military commander and implemented significant administrative reforms, his reign was marred by his brutal persecution of Christians.

As a staunch defender of the traditional Roman religion, Diocletian believed that Christians undermined the empire's stability.

His "Great Persecution" in 303 AD was the most severe and widespread persecution of Christians in the Roman Empire's history, leading to the execution of thousands and the destruction of Christian churches and texts.

Despite his efforts to restore the empire's former glory, Diocletian's legacy is tainted by his religious intolerance.

A truly bad bunch
The reigns of these nine Roman emperors are cautionary tales of the dangers of absolute power, illustrating how the worst aspects of human nature can thrive when left unchecked.

While the Roman Empire was characterized by immense cultural, military, and political achievements, it was also marred by the actions of these rulers, whose cruelty and incompetence left a lasting stain on Rome's legacy.

Curated By

Thomas Byrne
Religion and Ethics Reporter | Investigative Journalist | Editorial Writer/Columnist for Catholic Publications
Thomas writes with a steady hand in an unsteady age. In a climate driven by urgency and reaction, his work steps back to ask the questions that matter, and to follow them wherever they lead. Drawing on a disciplined, reflective approach, he examines political tensions, cultural shifts, and social challenges with an eye toward both principle and consequence. He resists the pull of easy conclusions, instead inviting readers into a deeper consideration of facts, context, and the human realities behind the headlines. His perspective is grounded in a respect for tradition, tempered by a recognition that every era must answer its own questions. Through careful reasoning and a measured tone, Thomas offers not just information, but clarity, encouraging a more thoughtful engagement with the world as it is, rather than as it is too often portrayed.

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