Curule aedile in the context of Cura annonae

The Roman magistrates (Latin: magistratus) were elected officials in ancient Rome. During the period of the Roman Kingdom, the King of Rome was the principal executive magistrate. His power, in practice, was absolute. He was the chief priest, lawgiver, judge, and the sole commander of the army. When the king died, his power reverted to the Roman Senate, which then chose an Interrex to facilitate the election of a new king.

During the transition from the Roman Kingdom to Roman Republic, the constitutional balance of power shifted from the executive (the Roman king) to the Roman Senate. When the Roman Republic was founded in 509 BC, the powers that had been held by the king were transferred to the Roman consuls, of which two were to be elected each year. Magistrates of the republic were elected by the people of Rome, and were each vested with a degree of power called "major powers" (maior potestas). Dictators had more "major powers" than any other magistrate, and after the dictator was the censor, and then the consul, and then the praetor, and then the curule aedile, and then the quaestor. Any magistrate could obstruct ("veto") an action that was being taken by a magistrate with an equal or lower degree of magisterial powers. By definition, plebeian tribunes and plebeian aediles were technically not magistrates since they were elected only by the plebeians, and plebeian tribunes could veto the actions of any ordinary magistrate.

The executive magistrates of the Roman Republic were officials of the ancient Roman Republic (c. 510 BC – 44 BC), elected by the People of Rome. Ordinary magistrates (magistratus) were divided into several ranks according to their role and the power they wielded: censors, consuls (who functioned as the regular head of state), praetors, curule aediles, and finally quaestor. Any magistrate could obstruct (veto) an action that was being taken by a magistrate with an equal or lower degree of magisterial powers. By definition, plebeian tribunes and plebeian aediles were technically not magistrates as they were elected only by the plebeians, but no ordinary magistrate could veto any of their actions. Dictator was an extraordinary magistrate normally elected in times of emergency (usually military) for a short period. During this period, the dictator's power over the Roman government was absolute, as they were not checked by any institution or magistrate.

Publius Cornelius Lentulus Spinther (c. 100 BC – 47 BC) was a Roman politician and general. Hailing from the patrician family of the Cornelii, he helped suppress the Catilinarian conspiracy during his term as curule aedile in 63 BC and later served as consul in 57 BC. Denied the opportunity to invade Egypt the following year, he nevertheless won some victories in his province of Cilicia and celebrated a triumph over it in 51 BC.

In the run-up to Caesar's civil war, he sided with Pompey and the senate. Captured by Caesar and pardoned at Corfinium in the opening months of the war, he made his way to Greece to join Pompey's forces. He is last attested to in early 47 BC.