The Roman Kingdom, also referred to as the Roman monarchy or the regal period of ancient Rome, was the earliest period of Roman history when the city and its territory were ruled by kings. According to tradition, the Roman Kingdom began with the city's founding c. 753 BC, with settlements around the Palatine Hill along the river Tiber in central Italy, and ended with the overthrow of the kings and the establishment of the Republic c. 509 BC.
Lucius Junius Brutus was the semi-legendary founder of the Roman Republic, and traditionally one of its first consuls in 509 BC. He was reputedly responsible for the expulsion of his uncle the Roman king Tarquinius Superbus after the suicide of Lucretia, which led to the overthrow of the Roman monarchy. He was involved in the abdication of fellow consul Tarquinius Collatinus, and executed two of his sons for plotting the restoration of the Tarquins.
The interrex was an extraordinary magistrate during the Roman Kingdom and Republic. Initially, the interrex was appointed after the death of the king of Rome until the election of his successor, hence its name—a ruler "between kings". The position was retained during the Republic when both consuls were unable to assume their duties, especially holding elections. Interreges ruled for only five days, which often led several of them to be appointed in succession, the record being 15 interreges in 326 BC. They were exclusively chosen from among patrician senators, and during the Conflict of the Orders, their appointment was sometimes designed to hinder plebeians from reaching power or passing laws.
The Curiate Assembly was the principal assembly that evolved in shape and form over the course of the Roman Kingdom until the Comitia Centuriata organized by Servius Tullius. During these first decades, the people of Rome were organized into thirty units called "Curiae". The Curiae were ethnic in nature, and thus were organized on the basis of the early Roman family, or, more specifically, on the basis of the thirty original patrician (aristocratic) clans. The Curiae formed an assembly for legislative, electoral, and judicial purposes. The Curiate Assembly passed laws, elected Consuls, and tried judicial cases. Consuls always presided over the assembly. While plebeians (commoners) could participate in this assembly, only the patricians could vote.
A consul was the highest elected public official of the Roman Republic. 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 when both were in Rome. A consul's imperium extended over Rome and all its provinces.
The praefectus urbanus, also called praefectus urbi or urban prefect in English, was prefect of the city of Rome, and later also of Constantinople. The office originated under the Roman kings, continued during the Republic and Empire, and held high importance in late Antiquity. The office survived the collapse of the Western Roman Empire, and the last urban prefect of Rome, named Iohannes, is attested in 599. In the East, in Constantinople, the office survived until the 13th century.
The Roman magistrates 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.
The constitution of the Roman Republic was a set of uncodified norms and customs which, together with various written laws, guided the procedural governance of the Roman Republic. The constitution emerged from that of the Roman kingdom, evolved substantively and significantly – almost to the point of unrecognisability – over the almost five hundred years of the republic. The collapse of republican government and norms beginning in 133 BC would lead to the rise of Augustus and his principate.
The Roman Constitution was an uncodified set of guidelines and principles passed down mainly through precedent. The Roman constitution was not formal or even official, largely unwritten and constantly evolving. Having those characteristics, it was therefore more like the British and United States common law system than a sovereign law system like the English Constitutions of Clarendon and Great Charter or the United States Constitution, even though the constitution's evolution through the years was often directed by passage of new laws and repeal of older ones.
The Roman Senate was the highest and constituting assembly of ancient Rome and its aristocracy. With different powers throughout its existence it lasted from the first days of the city of Rome as the Senate of the Roman Kingdom, to the Senate of the Roman Republic and Senate of the Roman Empire and eventually the Byzantine Senate of the Eastern Roman Empire, existing well into the post-classical era and Middle Ages.
The Roman Assemblies were institutions in ancient Rome. They functioned as the machinery of the Roman legislative branch, and thus passed all legislation. Since the assemblies operated on the basis of a direct democracy, ordinary citizens, and not elected representatives, would cast all ballots. The assemblies were subject to strong checks on their power by the executive branch and by the Roman Senate. Laws were passed by Curia, Tribes, and century.
The executive magistrates of the Roman Republic were officials of the ancient Roman Republic, 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, 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 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.
The History of the Roman Constitution is a study of Ancient Rome that traces the progression of Roman political development from the founding of the city of Rome in 753 BC to the collapse of the Western Roman Empire in 476 AD. The constitution of the Roman Kingdom vested the sovereign power in the King of Rome. The king did have two rudimentary checks on his authority, which took the form of a board of elders and a popular assembly. The arrangement was similar to the constitutional arrangements found in contemporary Greek city-states. These Greek constitutional principles probably came to Rome through the Greek colonies of Magna Graecia in southern Italy. The Roman Kingdom was overthrown in 510 BC, according to legend, and in its place the Roman Republic was founded.
The Roman Kingdom's unwritten constitution originated mainly through precedent. During the years of the Roman Kingdom, the constitutional arrangement was centered on the king, who had the power to appoint assistants, and delegate to them their specific powers. The Roman Senate, which was dominated by the aristocracy, served as the advisory council to the king. Often, the king asked the Senate to vote on various matters, but he was free to ignore any advice they gave him. The king could also request a vote on various matters by the popular assembly, which he was also free to ignore. The popular assembly functioned as a vehicle through which the People of Rome could express their opinions. In it, the people were organized according to their respective curiae. However, the popular assembly did have other functions. For example, it was a forum used by citizens to hear announcements. It could also serve as a trial court for both civil and criminal matters.
The Senate of the Roman Kingdom was a political institution in the ancient Roman Kingdom. The word senate derives from the Latin word senex, which means "old man". Therefore, senate literally means "board of old men" and translates as "Council of Elders". The prehistoric Indo-Europeans who settled Rome in the centuries before the legendary founding of Rome in 753 BC were structured into tribal communities. These tribal communities often included an aristocratic board of tribal elders, who were vested with supreme authority over their tribe. The early tribes that had settled along the banks of the Tiber eventually aggregated into a loose confederation, and later formed an alliance for protection against invaders.
The Legislative Assemblies of the Roman Kingdom were political institutions in the ancient Roman Kingdom. While one assembly, the Curiate Assembly, had some legislative powers, these powers involved nothing more than a right to symbolically ratify decrees issued by the king. The functions of the other assembly, the Calate Assembly, was purely religious. During the years of the kingdom, the People of Rome were organized on the basis of units called curiae. All of the People of Rome were divided amongst a total of thirty curia, and membership in an individual curia was hereditary. Each member of a particular family belonged to the same curia. Each curia had an organization similar to that of the early Roman family, including specific religious rites and common festivals. These curia were the basic units of division in the two popular assemblies. The members in each curia would vote, and the majority in each curia would determine how that curia voted before the assembly. Thus, a majority of the curia was needed during any vote before either the Curiate Assembly or the Calate Assembly.
The executive magistrates of the Roman Kingdom were elected officials of the ancient Roman Kingdom. During the period of the Roman Kingdom, the Roman King was the principal executive magistrate. His power, in practice, was absolute. He was the chief executive, chief priest, chief lawgiver, chief judge, and the sole commander-in-chief of the army. He had the sole power to select his own assistants, and to grant them their powers. Unlike most other ancient monarchs, his powers rested on law and legal precedent, through a type of statutory authorization known as "Imperium". He could only receive these powers through the political process of a democratic election, and could theoretically be removed from office. As such, he could not pass his powers to an heir upon his death, and he typically received no divine honors or recognitions. When the king died, his power reverted to the Roman Senate, which then chose an Interrex to facilitate the election of a new king. The new king was then formally elected by the People of Rome, and, upon the acquiescence of the Roman Senate, he was granted his Imperium by the people through the popular assembly.
The history of the Constitution of the Roman Republic is a study of the ancient Roman Republic that traces the progression of Roman political development from the founding of the Roman Republic in 509 BC until the founding of the Roman Empire in 27 BC. The constitutional history of the Roman Republic can be divided into five phases. The first phase began with the revolution which overthrew the Roman Kingdom in 509 BC, and the final phase ended with the revolution which overthrew the Roman Republic, and thus created the Roman Empire, in 27 BC. Throughout the history of the Republic, the constitutional evolution was driven by the struggle between the aristocracy and the ordinary citizens.
The leges regiae were early Roman laws which classical historians such as Plutarch thought had been introduced by the semilegendary kings of Rome.
The constitutional reforms of Augustus were a series of laws that were enacted by the Roman Emperor Augustus between 30 BC and 2 BC, which transformed the Constitution of the Roman Republic into the Constitution of the Roman Empire. The era during which these changes were made began when Augustus defeated Mark Antony and Cleopatra at the Battle of Actium in 31 BC, and ended when the Roman Senate granted Augustus the title "Pater Patriae" in 2 BC.
