The consuls were the two highest elected public officials of the Roman Republic (c. 509 BC to 27 BC). Romans considered the consulship the second-highest level of the cursus honorum—an ascending sequence of public offices to which politicians aspired—after that of the censor, which was reserved for former consuls. Each year, the centuriate assembly elected two consuls to serve jointly for a one-year term. The consuls alternated each month holding fasces (taking turns leading) when both were in Rome. A consul's imperium (military power) extended over Rome and all its provinces.
Having two consuls created a check on the power of any one individual, in accordance with the republican belief that the powers of the former kings of Rome should be spread out into multiple offices. To that end, each consul could veto the actions of the other consul.
After the establishment of the Empire (27 BC), the consuls became mere symbolic representatives of Rome's republican heritage and held very little power and authority, with the Emperor acting as the supreme authority.
Contents
History
Under the Republic
According to Roman tradition, after the expulsion of the last king, Tarquin Superbus, the powers and authority of the king were given to the newly instituted consulship. Originally, consuls were called praetors ("leaders"), referring to their duties as the chief military commanders. By at least 300 BC the title of consul became commonly used. Ancient writers usually derive the title consul from the Latin verb consulere, "to take counsel", but this is most likely a later gloss of the term, which probably derives—in view of the joint nature of the office—from con- and sal-, "get together" or from con- and sell-/sedl-, "sit down together with" or "next to". In Greek, the title was originally rendered as στρατηγὸς ὕπατος, strategos hypatos ("the supreme general"), and later simply as ὕπατος (hypatos).
The consulship was believed by the Romans to date back to the traditional establishment of the Republic in 509 BC, but the succession of consuls was not continuous in the 5th century BC, when the consulship was supposedly replaced with a board of consular tribunes, which was elected whenever the military needs of the state were significant enough to warrant the election of more than the usual two consuls. These remained in place until the office was abolished in 367 BC and the consulship was reintroduced.
Consuls had extensive powers in peacetime (administrative, legislative, and judicial), and in wartime often held the highest military command. Additional religious duties included certain rites which, as a sign of their formal importance, could only be carried out by the highest state officials. Consuls also read auguries, an essential religious ritual, before leading armies into the field.
Two consuls were elected each year, serving together, each with veto power over the other's actions, a normal principle for magistracies. They were elected by the comitia centuriata, which also elected praetors and censors. However, they formally assumed powers only after the ratification of their election in the older comitia curiata, which granted the consuls their imperium by enacting a law, the lex curiata de imperio.
If a consul died during his term (not uncommon when consuls were in the forefront of battle) or was removed from office, another would be elected by the comitia centuriata to serve the remainder of the term as consul suffectus (suffect consul). A consul elected to start the year, called a consul ordinarius (ordinary consul), held more prestige than a suffect consul, partly because the year would be named for ordinary consuls (see consular dating).
Under the Empire
Although throughout the early years of the Principate the consuls were still formally elected by the comitia centuriata, they were de facto nominated by the princeps. As the years progressed, the distinction between the comitia centuriata and the comitia populi tributa (which elected the lower magisterial positions) appears to have disappeared, and so for the purposes of the consular elections, there came to be just a single "assembly of the people" which elected all the magisterial positions of the state, while the consuls continued to be nominated by the princeps.
The imperial consulate during the Principate (until the 3rd century) was an important position, albeit as the method through which the Roman aristocracy could progress through to the higher levels of imperial administration—only former consuls could become consular legates, the proconsuls of Africa and Asia, or the urban prefect of Rome. It was a post that would be occupied by a man halfway through his career, in his early thirties for a patrician, or in his early forties for most others. Emperors frequently appointed themselves, or their protégés or relatives, as consuls, even without regard to the age requirements. Caligula once said that he would appoint his horse Incitatus consul, which was probably a joke intended to belittle the Senate's authority.
The need for a pool of men to fill the consular positions forced Augustus to remodel the suffect consulate, allowing more than the two elected for the ordinary consulate. During the reigns of the Julio-Claudians, the ordinary consuls who began the year usually relinquished their office mid-year, with the election for the suffect consuls occurring at the same time as that for the ordinary consuls. During reigns of the Flavian and Antonine emperors, the ordinary consuls tended to resign after a period of four months, and the elections were moved to 12 January of the year in which they were to hold office. Election of the consuls were transferred to the Senate during the Flavian or Antonine periods, although through to the 3rd century, the people were still called on to ratify the Senate's selections. The emperor did not assume the consulship of every year of his reign, but did nominate himself multiple times; Augustus was consul 13 times, Domitian 17, and Theodosius II 18.
The proliferation of suffect consuls through this process, and the allocation of this office to homines novi tended, over time, to devalue the office. However, the high regard placed upon the ordinary consulate remained intact; it was one of the few offices that one could share with the emperor, and during this period it was filled mostly by patricians or by individuals who had consular ancestors. If they were especially skilled or valued, they may even have achieved a second (or rarely, a third) consulate. Prior to achieving the consulate, these individuals already had a significant career behind them and would expect to continue serving the state, filling in the post upon which the state functioned. Consequently, holding the ordinary consulship was a great honor, and the office was the major symbol of the still relatively republican constitution. Probably as part of seeking formal legitimacy, the break-away Gallic Empire had its own pairs of consuls during its existence (260–274). The list of consuls for this state is incomplete, drawn from inscriptions and coins.
Powers and responsibilities
Republican duties
Traditionally, after the expulsion of the kings, all the powers that had belonged to the kings were transferred to two offices: the consulship and the office of rex sacrorum. While the rex sacrorum inherited the kings' position as royal priest and various religious functions were handed off to the pontiffs, the consuls were given the remaining civil and military responsibilities. To prevent abuse of the kingly power, this authority was shared by two consuls, each of whom could veto the other's actions, with short annual terms.
The consuls were invested with the executive power of the state and headed the government of the Republic. Initially, the consuls held vast executive and judicial power. In the gradual development of the Roman legal system, however, some important functions were detached from the consulship and assigned to new officers. Thus, in 443 BC, the responsibility to conduct the Census was taken from the consuls and given to the censors. The second function taken from the consulship was their judicial power. Their position as chief judges was transferred to the praetors in 366 BC. After this time, the consul would only serve as judges in extraordinary criminal cases and only when called upon by decree of the Senate.
For the most part, power was divided between civil and military spheres. As long as the consuls were in the pomerium (the city of Rome), they were at the head of government, and all the other magistrates, with the exception of the tribune of the plebs, were subordinate to them, but retained independence of office. The internal machinery of the Republic was under the consuls' supervision. In order to allow the consuls greater authority in executing laws, the consuls had the right of summons and arrest, which was limited only by the right of appeal from their judgement. This power of punishment even extended to inferior magistrates.
As part of their executive functions, the consuls were responsible for carrying into effect the decrees of the Senate and the laws of the assemblies. Sometimes, in great emergencies, they might act on their own authority and responsibility. The consuls also served as the chief diplomats of the Roman state. Before any foreign ambassadors reached the Senate, they met with the consuls. The consul would introduce ambassadors to the Senate, and they alone negotiated between the Senate and foreign states.
The consuls could convene the Senate, and presided over its meetings. The consuls served as president of the Senate, one at a time, alternating every month. They could also summon any of the three Roman assemblies (Curiate, Centuriate, and Tribal) and presided over them. Thus, the consuls conducted the elections and put legislative measures to the vote. When neither consul was within the city, their civic duties were assumed by the praetor urbanus.
Imperial duties
After Augustus became the first Roman emperor in 27 BC with the establishment of the Principate, the consuls lost most of their powers and responsibilities. Though still officially the highest office of the state, they were merely a symbol of Rome's republican heritage. One of the two consular positions was often occupied by emperors themselves, especially from the 3rd century onwards. However, the imperial consuls maintained the right to preside at meetings of the Senate. They could also administer matters of justice, and organize games (ludi) and all public solemnities at their own expense.
Consular dating
Roman dates were customarily kept according to the names of the two consuls who took office that year, much like a regnal year in a monarchy. For instance, the year 59 BC in the modern calendar was called by the Romans "the consulship of Caesar and Bibulus", since the two colleagues in the consulship were Gaius Julius Caesar and Marcus Calpurnius Bibulus, although Caesar dominated the consulship so thoroughly that year that it was jokingly referred to as "the consulship of Julius and Caesar". The date the consuls took office varied: from 222 BC to 153 BC they took office 15 March, and due to the Second Celtiberian War, from 153 BC onwards the consuls took office on 1 January. The practice of dating years ab urbe condita (from the supposed foundation date of Rome) was less frequently used.
In Latin, the ablative absolute construction is frequently used to express the date, such as "M. Messalla et M. Pupio Pisone consulibus", translated literally as "With Marcus Messalla and Marcus Pupius Piso (being) the consuls", with 'being' implied, as it appears in Caesar's De Bello Gallico.
Consular Dating Key
509–479 BC: 1 September–29 August (August had only 29 days in Ancient Rome)
478–451 BC: 1 August–31 July
450–403 BC: 13 December–12 December
402–393 BC: 1 October–29 September (September had 29 days)
392–329 BC: 1 July–29 June (29 days)
328-223 BC: 1 May-29 April (29 days)
222–154 BC: 15 March–14 March
153–46 BC: 1 January–29 December (29 days)
Epigraphy
In Roman inscriptions, the word consul was usually abbreviated cos. The disappearance of the ⟨N⟩ was based on the classical Latin pronunciation of the word as /kõːsul/ or [ko:sul] since an /n/ sound before a fricative was omitted or solely nasalized the previous vowel instead. The word was sometimes spelled cosol in antiquity. Particularly in the imperial era, additional consulships after the first were noted by a trailing Roman numeral: twice consul was abbreviated cos ii, thrice consul cos iii, four times consul cos iiii or iv, etc.
Lists of Roman consuls
For a complete list of Roman consuls, see:
List of Roman consuls
List of undated Roman consuls
List of consuls designate