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Historical person

Gaius Cassius Longinus

83 BCE–43 BCE

Gaius Cassius Longinus was a Roman senator and general who became one of the principal organisers of the conspiracy against Julius Caesar. After the assassination in 44 BC, he raised forces in the eastern provinces and joined Marcus Brutus against the triumvirs. Cassius commanded one wing at the Battle of Philippi in 42 BC but, mistakenly believing that Brutus’s forces had also been defeated, ordered a freedman to kill him.

Cassius appears in Colleen McCullough’s The October Horse and in Conn Iggulden’s Emperor series, as well as in Shakespeare’s Julius Caesar, which strongly influenced later fictional portrayals. He is commonly shown as the harder, more practical conspirator beside the idealistic Brutus. Historical novels use that contrast to explore whether Caesar’s murder was a defence of republican liberty, an act of personal resentment or a failed seizure of power.

Peter Tonkin’s The Ides places Gaius Cassius Longinus within a narrative shaped by political ambition and government, crime, espionage and covert power, and family, marriage and personal loyalty. Conn Iggulden’s The Blood of Gods places Gaius Cassius Longinus within a narrative shaped by political ambition and government, crime, espionage and covert power, and military command and battlefield decision-making. Other novels featuring Gaius Cassius Longinus include Peter Tonkin’s After the Ides, Peter Tonkin’s The Road to War, Peter Tonkin’s Death at Philippi, Fiona Forsyth’s Blood and Shadows, and Valerio Massimo Manfredi’s The Ides of March.

Historical context

Historical periods linked to Gaius Cassius Longinus

Series

Series featuring Gaius Cassius Longinus (7 series)

Marius’ Mules in Order

by Simon Turney 17 books 4.6

The Marius’ Mules series follows Marcus Falerius Fronto and Caesar’s legions from the invasion of Gaul to the destruction of the Roman Republic. Battles recorded in Caesar’s commentaries are viewed through officers and soldiers who must endure the practical cost of his ambition, while conspiracies in Rome steadily…

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Masters of Rome in Order

by Colleen McCullough 7 books 4.5

The Masters of Rome series reconstructs the final century of the Roman Republic from the rise of Gaius Marius in 110 BCE to the settlement that made Octavian Augustus in 27 BCE. Across seven novels, military commands, elections, family alliances, provincial wealth and personal patronage become instruments in…

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Emperor in Order

by Conn Iggulden 5 books 4.6

The Emperor series is a highly fictionalised retelling of Julius Caesar’s life and the violent end of the Roman Republic. It follows Caesar from youth through war, political ascent and conquest, then continues beyond his assassination into the struggle between Octavian, Antony and Caesar’s killers.

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Lucius Sestius Mysteries in Order

by Fiona Forsyth 3 books 4.3

The Lucius Sestius Mysteries follow the historical Roman senator Lucius Sestius Quirinalis through the destruction of the Republic and the consolidation of Augustus’s principate. Beginning as a young lawyer under Julius Caesar, Forsyth’s Lucius is repeatedly drawn into murder inquiries whose evidence threatens the political settlement of the…

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Roma Sub Rosa in Order

by Steven Saylor 13 books 4.1

The Roma Sub Rosa series follows Gordianus the Finder through the last generation of the Roman Republic. His investigations begin in the aftermath of Sulla’s dictatorship and continue through slave revolt, aristocratic trials, Catiline’s conspiracy, Caesar’s civil war and the assassination of Julius Caesar. The series uses murder…

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Caesar’s Spies in Order

by Peter Tonkin 5 books 4.2

The Caesar’s Spies series follows Iacomus Artemidorus, code-named Septem, and the intelligence unit operating for Julius Caesar and later Mark Antony. The sequence begins with the attempt to prevent Caesar’s assassination in March 44 BC and continues through the pursuit of the conspirators, the struggle among Antony, Cicero…

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Standalone books

Standalone books featuring Gaius Cassius Longinus (1 book)