Julius Julianus

He served Licinius as praetorian prefect from at least spring 315 to September 324, until Constantine I definitively defeated Licinius. However, the fall of Licinius did not mark the end of Julianus' career, as Constantine had praised Julianus' administration of the State^[1] and chose him, in 325, as suffect to replace a consul fallen in disgrace, Valerius Proculus.^[2] He also served as Praefectus Aegypti in 328.

He was the father of Basilina, wife of Constantine's half-brother Julius Constantius and mother of Emperor Julian,^[3] and of the mother of Procopius; he was probably related to Eusebius of Nicomedia. Julianus was the master of the Gothic philosopher slave Mardonius, who was the teacher of both Basilina and Julian.

• Timothy David Barnes, Constantine and Eusebius, Harvard University Press, 1981, ISBN 0-674-16531-4, pp. 70, 214.
• Robert Browning, The Emperor Julian, University of California Press, 1978, ISBN 0-520-03731-6, p. 32.
• Jones, A.H.M.; J.R. Martindale & J. Morris (1971). Prosopography of the Later Roman Empire. Vol. 1. Cambridge University Press. ISBN 0-521-07233-6.