Gnaeus Octavius was a member of the
Plebeian gens Octavia. His father, also called
Gnaeus Octavius, was Consul in 128 BC, while his uncle,
Marcus Octavius, was a key figure in opposition to the reforms of
Tiberius Gracchus in 133 BC. He was a third cousin to
Gaius Octavius, father of the future
emperor Augustus. Although he had failed to be elected
aedile, in around 90 BC, Octavius was elected
Praetor, and in the following year (89 BC) was given a
propraetorial command in one of the eastern
provinces. In 88 BC he was back in Rome where he was elected to be consul for the upcoming year (87 BC). While consul designate, he was made to swear an oath alongside his colleague, the
popularist senator
Lucius Cornelius Cinna, that he would uphold the changes instituted by the current consul,
Sulla, and not strip Sulla of his lawful command of the
First Mithridatic War. A scrupulously religious man, Octavius kept his oath. Octavius was not a natural supporter of Sulla; he disliked both Sulla's march on
Rome, as well as Sulla's personal vendetta against
Gaius Marius which resulted in Marius's exile. However, he was a
conservative member of the Senate, and was distrustful of Cinna's popularist programme. These political differences saw the two consuls almost immediately begin quarrelling in 87 BC over policy, in which Cinna wanted to enrol the new citizens (Italian allies) across all of the
Roman tribes. He also proposed the recall of Marius and all his supporters. These proposals were strenuously opposed by Octavius, eloquently and energetically speaking against them in the Senate. Because of his interest in soothsayers, modern scholars have supposed that Octavius was a member of the
decemviri sacris faciundis, the priests in charge of the
Sibylline books. ==Conflict with Cinna==