Legio II Flavia Constantia

Shield pattern of the Secunda Flavia Constantia Thebaeorum, according to Notitia Dignitatum.

The Legio II Flavia Constantia (reliable Flavian legion) was a comitatensis Roman legion, created by Diocletian, probably in the year 296 or 297.

II Flavia Constantia was formed together with I Maximiana to garrison the newly created province Thebaidos, Aegyptus. The name of the legion is related to Constantius Chlorus, who reigned over the eastern part of the empire. II Flavia Constantia had its headquarters in Cusas (Not. Or. XXXI) until the time of the Notitia Dignitatum. In the course of time, probably under Constantine I, when the troops of the Egyptian provinces were united under the command of a dux (CIL II 12073), the legionary troops of the province were increased with units from both legions of Aegyptus I Iovia, II Traiana, and III Diocletiana, the latter gradually being divided into three garrisons (Not. or. XXXI 31. 33. 38).

II Flavia Constantia Thebaeorum, which belonged, at the time of the Notitia, to the comitatus of the magister militum per Orientem (Not. or. VII 10 = 45), was certainly a split off from II Flavia Constantia, which was, for more than a century, an established border-legion. The impulse for this split was probably given by a measure of Theodosius I, to mix a part of the Barbarians, which were passed over to him, with the troops in Egypt. These barbarians were added to the Egyptian troops and their accompanying commander in Macedonia (Zosimus IV 30 and 31), who resided at that time in Thessalonica. A part of II Flavia Constantia belonged to these Aiguptioi (Egyptians). It is fitting that at this time the legion II Flavia Valentis Thebaeorum (Not or. VII 11 = 46), which accompanied the troops in the Notitia and was named after and probably raised by Emperor Valens, was no longer mentioned with the garrison of Thebaidos (Not. or. XXXI), because of the short time it stayed in the province.

See also

• List of Roman legions

References

• Ritterling's "Legio", through romanarmy.com
• livius.org account

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