History Thread for “co-emperor”

01

Maximian Abdicates Roman Throne

Maximian, co-emperor of the Roman Empire, formally abdicated his position alongside Diocletian. This marked a significant moment in the Tetrarchy system, a power-sharing arrangement invol...

4th century abdication augustus caesar co-emperor constantius chloride

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02

May 1, 305 Politics

End of Roman Imperial Rule

Roman Empire

Emperor Diocletian formally abdicated the throne, marking a rare voluntary withdrawal from power by a Roman emperor. This significant event occurred as part of the Tetrarchy system he had...

abdication ancient rome caesar dalmatia diocletian emperor

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03

March 1, 293 Politics

Appointment of Constantius Chlorus as Caesar

Roman Empire

Constantius Chlorus was appointed Caesar by Emperor Diocletian as part of the Tetrarchy system to stabilize and govern the Roman Empire more effectively. This appointment marked the begin...

caesar constantius chlorus diocletian empire division governance imperial appointment

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04

April 1, 286 Politics

Maximian Elevated to Co-Emperor

Mediolanum · Italy · Roman Empire

In April, the Roman Emperor Diocletian appointed Maximian as Augustus, elevating him to co-emperor status to help manage the vast Roman Empire. This move was part of a broader strategy to...

ancient rome augustus co-emperor diocletian diocletianic reforms eastern empire

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05

May 26, 253 Politics

Gallienus Ascends Roman Throne

Palatine Hill · Rome · Italian Peninsula · Roman Empire

Gallienus became Roman Emperor following the assassination of his father, Valerian. His accession marked the beginning of a co-rule, where he shared power with his father before Valerian ...

accession ancient history ancient rome co-emperors crisis of the third century gallienus

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06

April 22, 238 Politics

Dual Rule of Roman Emperors

Roman Senate House · Rome · Italy · Roman Empire

Following the death of Emperor Maximinus Thrax, the Roman Senate appointed Pupienus and Balbinus as co-emperors to restore order within the Roman Empire. Their joint accession marked a ra...

3rd century ancient empire ancient rome assassination balbinus co-emperors

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07

December 26, 211 Politics

Assassination of Roman Emperor Geta

Alexandria · Egypt · Roman Empire

Geta, co-emperor of the Roman Empire alongside his brother Caracalla, was assassinated in Alexandria under political tension and rivalry. The murder occurred shortly after Caracalla conso...

alexandria ancient rome assassination caracalla co-emperors damnatio memoriae

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08

December 19, 209 Politics

Geta Elevated to Augustus Title

Rome · Italy · Roman Empire

Publius Septimius Geta, son of Emperor Septimius Severus, was granted the title of Augustus, marking him as co-emperor alongside his father and brother Caracalla. This political move aime...

ancient rome augustus caracalla co-emperor geta imperial succession

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09

March 20, 209 Politics

Geta Granted Augustus Title

Roman Senate · Rome · Italia · Roman Empire

Publius Septimius Geta, son of Emperor Septimius Severus, was granted the title of Augustus by the Roman Senate. This elevated Geta to co-emperor status alongside his father and his broth...

ancient rome augustus caracalla co-emperor dynastic rule early 3rd century

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10

January 28, 198 Politics

Caracalla Declares Himself Augustus

Palatine Hill · Rome · Italy · Roman Empire

Caracalla officially took the title of Augustus, marking his elevation to co-emperor alongside his father, Septimius Severus. This move solidified his position within the Severan dynasty ...

1st century ancient politics ancient rome augustus caracalla co-emperor

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11

October 25, 177 Politics

Commodus Elevated as Co-Emperor

Palatine Hill · Rome · Italy · Roman Empire

Roman Emperor Marcus Aurelius officially declared his son Commodus as co-emperor, sharing imperial authority.This political move marked the first time a biological son was directly elevat...

2nd century ancient leadership ancient rome antonine dynasty co-emperor commodus

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12

January 1, 169 Politics

Demise of Roman Emperor Lucius Verus

Imperial Palace · Rome · Italy · Roman Empire

Lucius Verus, co-emperor of Rome alongside Marcus Aurelius, died in Rome under circumstances believed to be related to a devastating plague. His death marked a significant point in Roman ...

2nd century ancient empire ancient rome antonine plague co-emperor imperial death

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13

October 8, 161 Politics

Lucius Verus Assumes Roman Imperial Power

Roman Forum · Rome · Italia · Roman Empire

Lucius Verus was formally declared co-emperor alongside Marcus Aurelius, marking a significant moment in Roman imperial succession. This joint rule established a precedent for multiple em...

ancient rome antonine dynasty coemperor emperor accession imperial politics imperial strategy

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14

March 7, 161 Politics

Marcus Aurelius Becomes Roman Emperor

Imperial Palaces · Rome · Roman Empire

Marcus Aurelius officially became Roman Emperor following the death of Antoninus Pius. His accession marked the continuation of the Nerva-Antonine dynasty through adoptive succession.The ...

adoptive succession ancient rome antoninus pius co-emperors emperor imperial authority

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