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First Catilinarian conspiracy

Fictitious conspiracy circa 65 BC to install new Roman consuls by force

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Almost all modern historians believe the conspiracy is fictitious and dismiss claims thereof as merely slanderous political rumours. The core of the legend, a plot by the two consuls-elect for 65 BC to kill and usurp the consuls, is dismissed as inconceivable. The participation of others, such as Catiline, is rejected as inconsistent with their immediately following political actions; most claims of participation are believed to be discrediting retrojections introduced in the aftermath of the real Catilinarian conspiracy in 63 BC.

Ancient accounts

The inciting incident for the conspiracy was the election of two consuls-designate for 65 BC, Publius Autronius Paetus and Publius Cornelius Sulla, followed by the invalidation of the results. They were accused and convicted of ambitus, electoral corruption, preventing them from entering office and expelling them from the senate. The two other leading candidates, Lucius Manlius Torquatus and Lucius Aurelius Cotta, were elected in a second election and then slated to enter office on the first day of 65 BC in their place. Catiline supposedly became involved when his consular candidacy was rejected by the presiding magistrate for the comitia in 66 BC, Lucius Volcatius Tullus.

Accounts

Cicero's account survives, although scattered over a number of speeches. At various times and contexts, he claimed there was a conspiracy:

  • involving Catiline and Gnaeus Calpurnius Piso to massacre conservative senators some time in 65 BC;
  • involving Autronius, Sulla, and Catiline to make Autronius and Sulla consuls conceived of in 66 and to be executed at the start of 65 BC;
  • mentioning only Catiline with vague activity and goals in December 66 BC; and
  • involving Autronius and Catiline to make themselves consuls.

Sallust describes a conspiracy developed in December 66 BC involving Autronius, Catiline, and Piso to make Autronius and Catiline consuls by violence on 1 January 65 BC. His description then includes a further conspiracy to murder many senators and assume the consulship on 5 February 65 BC after the discovery of the first plot.

Livy's account survives only in the Periochae. The summary thereof states only that a conspiracy, by those who had stood for the consulship but were convicted of ambitus (Autronius and Sulla), to kill the consuls was suppressed.

Suetonius' account has no mention of Catiline and instead has Autronius conspiring with Julius Caesar (later dictator) and Marcus Licinius Crassus (later Caesar's ally) to butcher the replacement consuls and have Crassus made dictator with Caesar as magister equitum. Caesar would help by cooperating with Piso to raise an insurrection in Hispania and elsewhere. Crassus and Caesar would then restore Autronius and Sulla to their vacated consulships.

Cassius Dio gives no mention of Crassus and Caesar, relating instead that Autronius, Sulla, Catiline, and Piso conspired to make Autronius and Sulla consuls.

Aftermath

In the aftermath of the rumours, the senate voted to provide bodyguards for the consuls and to establish an inquiry; the inquiry, however, was vetoed by one of the tribunes. When Catiline was tried for corruption later in 65 BC, one of the sitting consuls he was alleged to have planned to murder, Lucius Manlius Torquatus, appeared in his defence and indicated his disbelief of the rumours. On his part, Cicero continued to slander Catiline through following years with the allegations due both to his personal enmity with Catiline and his desire to embellish his suppression of Catiline's revolt in 63 BC.

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