Constantius: West

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One of the many territorial divisions of the Roman Empire during the Tetrarchy period.

Establishment

Chronology

Interactive Chronologies with maps are available in the section Changes Navigation

1. Crisis of the Third Century

Was a period in which the Roman Empire nearly collapsed due to invasions and secessions. In particular, the period saw the creation of two secessionist states: the Gallic Empire andhe Kingdom of Palmyra.

1.1.Barbarian invasions of the Third Century

Were a series of Barbarian invasions of the Roman Empire during the Crisis of the Third Century.

1.1.1.Origin of the Frankish tribal confederations

The Frankish people was divided into two federations: the Salian Franks and the Ripuarian Franks.

2. Civil wars of the Tetrarchy

Were a series of conflicts between the co-emperors of the Roman Empire (the system of Thetrarchy introduced by Diocletian divided the Roman Empire between two emperors, the augusti, and their junior colleagues and designated successors, the caesares). The war ended with Constantine I as undisputed Emperor.

2.1.Early Tetrarchic Period

The Tetrarchy was the system instituted by Roman emperor Diocletian in 293 AD to govern the ancient Roman Empire by dividing it between two emperors, the augusti, and their junior colleagues and designated successors, the caesares. This marked the end of the Crisis of the Third Century.

Disestablishment