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Which territories were administered by Galerius in the tetrarchy?
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Diocletian
Diocletian.
Under the tetrarchy established by Diocletian, the Roman Empire was divided into four administrative regions. As a Caesar, Galerius was responsible for administering the following territories:
During this period, Galerius maintained his residence in Sirmium to oversee these regions. Following Diocletian's abdication in 305 CE, Galerius became the senior emperor (Augustus) of the East, expanding his administrative influence to include the Balkans and Anatolia.12