Eusebius (consul 347)

Flavius Eusebius (died c. AD 350) was a Roman military officer and politician, and is usually identified as the posthumous father-in-law of the Roman emperor Constantius II.


Born in the city of Thessalonica, and of Macedonian descent, prior to AD 347 Eusebius was the Magister equitum et peditum in the east, probably under the emperor Constantius II.[1] During his time as military commander, he intervened in Armenia, possibly to suppress the revolt of Bacour.[2]

After he had retired from this post, he held the rank of Comes and was made consul posterior alongside Vulcacius Rufinus in AD 347.

Probably a Christian,[3] Eusebius had at least three children, Flavius Eusebius, Flavius Hypatius, both of whom held the consulship together in AD 359, and Eusebia, who married Emperor Constantius II after her father had died.[4]


  • Martindale, J. R.; Jones, A. H. M, The Prosopography of the Later Roman Empire, Vol. I AD 260–395, Cambridge University Press (1971)


  1. ^ Martindale & Jones, pgs. 307-308
  2. ^ Michael H. Dodgeon, Samuel N. C. Lieu, The Roman Eastern Frontier and the Persian Wars (AD 226-363): A Documentary History (1994), pg. 338
  3. ^ Barnes, T. D., Christians and Pagans under Constantius in L'Eglise et L'Empire au IV Siecle (1989), pg. 317
  4. ^ Martindale and Jones, pg. 308
Political offices
Preceded by Roman consul
with Vulcacius Rufinus
Succeeded by