a political leader during the roman empire was called
emperors
title: Roman Empire text: the right to declare war, ratify treaties, and negotiate with foreign leaders. While these functions were clearly defined during the Principate, the emperor's powers over time became less constitutional and more monarchical, culminating in the Dominate. The emperor was the ultimate authority in policy- and decision-making, but in the early Principate he was expected to be accessible to individuals from all walks of life, and to deal personally with official business and petitions. A bureaucracy formed around him only gradually. The Julio-Claudian emperors relied on an informal body of advisors that included not only senators and equestrians, but trusted slaves title: Empire text: direct or indirect control of that state, such as a colony, client state, or protectorate. Although historians use the terms "Republican Period" and "Imperial Period" to identify the periods of Roman history before and after absolute power was assumed by Augustus, the Romans themselves continued to refer to their government as a republic, and during the Republican Period, the territories controlled by the republic were referred to as ""Imperium Romanum"". The emperor's actual legal power derived from holding the office of "consul", but he was traditionally honored with the titles of "imperator" (commander) and "princeps" (first man or, chief). Later, title: Roman emperor text: Roman emperor The Roman emperor was the ruler of the Roman Empire during the imperial period (starting in 27 BC). The emperors used a variety of different titles throughout history. Often when a given Roman is described as becoming "emperor" in English, it reflects his taking of the title "Augustus" or "Caesar". Another title often used was "imperator", originally a military honorific. Early Emperors also used the title "princeps" (first citizen). Emperors frequently amassed republican titles, notably "princeps senatus", "consul" and "pontifex maximus". The legitimacy of an emperor's rule depended on his control of the army and recognition by the title: Roman Empire text: Roman Empire The Roman Empire (, ; Koine and Medieval Greek: Βασιλεία τῶν Ῥωμαίων, tr. ; ) was the post-Roman Republic period of the ancient Roman civilization. It had a government headed by emperors and large territorial holdings around the Mediterranean Sea in Europe, Africa and Asia. The city of Rome served as its capital until the seat of the imperial government was shifted to Constantinople by Constantine the Great in the 4th century AD. The previous Republic, which had replaced Rome's monarchy in the 6th century BC, became severely destabilized in a series of civil wars and political conflict. title: Roman Empire text: assassination and open rebellion to contravene the will of the emperor, it survived the Augustan restoration and the turbulent Year of Four Emperors to retain its symbolic political centrality during the Principate. The senate legitimated the emperor's rule, and the emperor needed the experience of senators as legates "(legati)" to serve as generals, diplomats, and administrators. A successful career required competence as an administrator and remaining in favour with the emperor, or over time perhaps multiple emperors. The practical source of an emperor's power and authority was the military. The legionaries were paid by the Imperial treasury, and swore an