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Home / People / Diocletian

Historical person

Diocletian

c. 240s–316

Diocletian was Roman emperor from AD 284 to 305 and one of the most important reformers of the later empire. He reorganised administration, taxation and military command, created the Tetrarchy, and launched the last major imperial persecution of Christians.

In Simon Turney’s Sons of Rome, Diocletian creates the Tetrarchy, dividing imperial authority among four rulers in an attempt to end decades of invasion, usurpation and civil war. In Simon Turney’s Masters of Rome, the abdication of Diocletian has failed to secure a peaceful succession, and Constantine and Maxentius each establish authority in different parts of the western empire. Other novels featuring Diocletian include John Broughton’s The Saxon Shore and Steven Saylor’s Dominus.

In non-fiction, Diocletian is discussed in Nick Holmes’s The Roman Revolution. In Nick Holmes’s The Roman Revolution, the second half follows Diocletian and Constantine as they reorganised taxation, administration and military command and transformed the basis of imperial rule.

Series

Series featuring Diocletian (3 series)

Rise of Emperors in Order

by Simon Turney 3 books 4.4

Rise of Emperors follows Constantine and Maxentius from youth and friendship into the succession struggles created by Diocletian’s Tetrarchy. Their lives develop alongside abdications, rival courts, religious division and repeated civil wars as a system designed to prevent dynastic conflict instead produces competing emperors. The trilogy treats both…

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Roma Trilogy in Order

by Steven Saylor 3 books 4.0

The Roma Trilogy follows generations of the fictional Pinarius family across the long history of Rome. Roma begins with the city’s legendary foundation and continues through the Republic and the rise of Augustus; Empire carries the family through the Julio-Claudian, Flavian and adoptive-emperor periods; Dominus follows the later…

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The Saxon Shore Trilogy in Order

by John Broughton 3 books 4.0

The Saxon Shore Trilogy traces the weakening of Roman authority in Britain from the breakaway empire of Carausius to the political world remembered in Arthurian legend. Successive generations of Valdor’s family serve as soldiers and commanders while imperial rivalry, frontier warfare and the withdrawal of Roman forces transform…

All books in this series

Non Fiction

Non Fiction featuring Diocletian (2 books)

Biographies, histories and other non-fiction are listed separately from the historical novels above.