Cassius Dio (consul 291)

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Cassius Dio (fl. late third century) was a Roman senator who was appointed consul in AD 291.


Cassius Dio was either the grandson or great-grandson of his namesake, the historian Cassius Dio, whose family originated in Bithynia. He was appointed consul posterior in AD 291 alongside Gaius Junius Tiberianus at quite a young age.[1] This was followed by a posting as Proconsular governor of Africa from approximately 1 July 294 to 1 July 295.[2] Then on 18 February AD 296, he was appointed Praefectus urbi of Rome, a position he held until AD 297.

Cassius Dio owned a house on the Palatine Hill called the Domus Dionis. At some stage, he and 12 other senators each contributed 400,000 sesterces, probably for the construction of a building.


  • Christol, Michel, Essai sur l'évolution des carrières sénatoriales dans la seconde moitié du IIIe siècle ap. J.C. (1986)
  • Martindale, J. R.; Jones, A. H. M, The Prosopography of the Later Roman Empire, Vol. I AD 260-395, Cambridge University Press (1971)


  1. ^ Christol, pg. 122
  2. ^ Martindale & Jones, pg. 253
Political offices
Preceded by
Gaius Aurelius Valerius Diocletianus Augustus IV
Marcus Aurelius Valerius Maximianus Augustus III
Consul of the Roman Empire
with Gaius Junius Tiberianus II
Succeeded by
Afranius Hannibalianus
Julius Asclepiodotus