Tetrarch
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A tetrarch is a Greek term that strictly identifies each of the holders of office under a tetrarchy system (see that article).
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political/administrative
a divided country/province
- one of the four governors .
The term is thus used for any subordinate or dependent prince, or for a petty sovereign.
In Palestine, Herod the tetrarch had the title of king (Matt. 14:9).
Herod and Phasael, the sons of Antipater, were the first Tetrarchs in Palestine.
co-emperor
In the Tetrarchy (established by Diocletian in 293 CE), under which the Roman Empire was divided among two Augusti and two Caesares.
military uses
Classical army officer
- Greek/Macedonian 'Tetrarch' - in charge of a unit associated with the number four (tetra), such as a quarter of a larger unit (such as a phalanx, or in one case a 'company' of 64 footmen), or comprizing four smaller units (in one case 4 lochoi, each under a lochagos).
- The Romans also used the term for one level of military commander.
Modern weaponry
A British light tank of WW2Template:Hist-stub