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The term Tetrarchy (Greek: "leadership of four [people]") describes any system of government where power is divided among four individuals, but usually refers to the tetrarchy instituted by Roman Emperor Diocletian in 293, marking the end of the Crisis of the Third Century and the recovery of the Roman Empire. This Tetrarchy lasted until c.313, when internecine conflict eliminated most of the claimants to power, leaving Constantine in the West and Licinius in the East.



This article is part of the series:
Politics and government of
Ancient Rome

Roman Republic
508 BC27 BC
Roman Empire
27 BCAD 1453

Western Empire

Eastern Empire

Constitution of the Kingdom
Constitution of the Republic
Constitution of the Empire
Constitution of the Late Empire
History of the Constitution
Legislative Assemblies
Executive Magistrates

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