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'Flavius Philippus' (''
fl.''
340s-
350s) was a
Roman Empire officer under
Emperor Constantius II.

Coin of Emperor
Constantius II. Philippus rose in Constantius' consideration, up to receiving the rank of
Praetorian Prefect for the East, possibly because of the influence of Constantius' eunuchs.
Son of a sausage-maker, Philippus rose in social levels becoming a ''
notarius''.
[1] In
344, he became
Praetorian Prefect for the East under Emperor Constantius, allegedly because of the influence of the court eunuchs.
[2] Philippus obtained also the
consulate in
348.

Coin of the
usurper Magnentius who kept prisoner Philippus, when the Praetorian Prefect came to the usurper's camp to discover the military readiness of Constantius' enemy.
In
351, when Constantius was facing the rebellion of
usurper Magnentius, Philippus was sent to the rebel camp, formally to negotiate a peace, but actually to discover the military readiness of the enemy.
[3] Philippus addressed the rebel army, accusing them of ingratitude towards the
Constantinian dynasty, and proposing to Magnentius to leave Italy and to keep only
Gaul. After Magnentius tried to conquer
Siscia, Philippus was held prisoner by the usurper.
[4]
Notes
1. Libanius, ''Orationes'', xlii.24-25.
2. Libanius, ''Orationes'', lxxii.11.
3. Zosimus, ii.46.2.
4. Zosimus, ii.46.2-4.
References
Primary sources
★
Libanius, ''Orationes'', xlii, lxxii.
★
Zosimus, ''Historia Nova'', ii.46.2-4.
Secondary sources
★
The prosopography of the later Roman Empire, , John, Morris, Cambridge University Press, 1992, ISBN 0-521-07233-6