Catilinarian conspiracy in the context of "Sallust"

Marcus Porcius Cato Uticensis ("of Utica"; /ˈkeɪtoʊ/, KAY-toe; 95 BC – April 46 BC), also known as Cato the Younger (Latin: Cato Minor), was an influential conservative Roman senator during the late Republic. A staunch advocate for liberty and the preservation of the Republic’s principles, he dedicated himself to protecting the traditional Roman values he believed were in decline. A noted orator and a follower of Stoicism, his scrupulous honesty and professed respect for tradition gave him a political following which he mobilised against powerful generals of his day, including Julius Caesar and Pompey.

Before Caesar's civil war, Cato served in a number of political offices. During his urban quaestorship in 63 BC, he was praised for his honesty and incorruptibility in running Rome's finances. He passed laws during his plebeian tribunate in 62 BC to expand the grain dole and force generals to give up their armies and commands before standing in elections. He also frustrated Pompey's ambitions by opposing a bill brought by Pompey's allies to transfer the military command to Pompey against the Catilinarian conspirators. He opposed, with varying success, Caesar's legislative programme during Caesar's first consulship in 59 BC. Leaving for Cyprus the next year, he was praised for his honest administration and after his return was elected as praetor for 54 BC.

A senate is a deliberative assembly, often the upper house or chamber of a bicameral legislature. The name comes from the ancient Roman Senate (Latin: Senatus), so-called as an assembly of the senior (Latin: senex meaning "the elder" or "old man") and therefore considered wiser and more experienced members of the society or ruling class. However the Roman Senate was not the ancestor or predecessor of modern parliamentarism in any sense, because the Roman senate was not a de jure legislative body.

Many countries have an assembly named a senate, composed of senators who may be elected, appointed, have inherited the title, or gained membership by other methods, depending on the country. Modern senates typically serve to provide a chamber of "sober second thought" to consider legislation passed by a lower house, whose members are usually elected. Most senates have asymmetrical duties and powers compared with their respective lower house meaning they have special duties, for example to fill important political positions or to pass special laws. Conversely many senates have limited powers in changing or stopping bills under consideration and efforts to stall or veto a bill may be bypassed by the lower house or another branch of government.

Lucius Sergius Catilina (c. 108 BC – January 62 BC), known in English as Catiline (/ˈkætəlaɪn/), was a Roman politician and soldier best known for instigating the Catilinarian conspiracy, a failed attempt to seize control of the Roman state in 63 BC.

Born to an ancient patrician family, he joined Sulla during Sulla's civil war and profited from Sulla's purges of his political enemies, becoming a wealthy man. In the early 60s BC, he served as praetor and then as governor of Africa (67–66 BC). Upon his return to Rome, he attempted to stand for the consulship but was rebuffed; he then was beset with legal challenges over alleged corruption in Africa and his actions during Sulla's proscriptions (83–82 BC). Acquitted on all charges with the support of influential friends in Roman politics, he stood for the consulship in 64 and in 63 BC.

Gaius Antonius Hybrida (flourished 1st century BC) was a politician of the Roman Republic. He was the second son of Marcus Antonius and brother of Marcus Antonius Creticus; his mother is unknown. He was also the uncle of the famed triumvir Mark Antony. He had two children, Antonia Hybrida Major and Antonia Hybrida Minor.

Hybrida's career began under Lucius Cornelius Sulla, whom he accompanied into Greece as either a military tribune or a legatus. Later, in 63 BC, he was elected to serve as consul of the Roman Republic alongside Marcus Tullius Cicero. The two struck a deal which effectively allowed Cicero to rule as sole consul in exchange for Hybrida receiving the governorship of Macedonia at the end of his term. The same year, Hybrida was involved in suppressing the Catilinarian conspiracy, a plot to overthrow the state led by Lucius Sergius Catilina, or "Catiline", and which culminated in the Battle of Pistoria and the death of Catiline. After his consulship, Hybrida was granted Macedonia as had been promised. Here, Hybrida abused his rule to rob the provincials and led invasions of the neighbouring lands of Moesia. His incursions brought two separate attacks from the natives who successfully forced Hybrida out of their lands without any loot.