id author title date pages extension mime words sentences flesch summary cache txt en-wikipedia-org-7573 Praetorian prefect - Wikipedia .html text/html 2792 438 59 The praetorian prefect (Latin: praefectus praetorio, Greek: ἔπαρχος/ὕπαρχος τῶν πραιτωρίων) was a high office in the Roman Empire. Originating as the commander of the Praetorian Guard, the office gradually acquired extensive legal and administrative functions, with its holders becoming the Emperor's chief aides. In this role, praetorian prefects continued to be appointed by the Eastern Roman Empire (and the Ostrogothic Kingdom) until the reign of Heraclius in the 7th century AD, when wide-ranging reforms reduced their power and converted them to mere overseers of provincial administration. Under the empire the praetorians or imperial guards were commanded by one, two, or even three praefects (praefecti praetorio), who were chosen by the emperor from among the equites and held office at his pleasure. List of known prefects of the Praetorian Guard[edit] For praetorian prefects after the reformation of the office by emperor Constantine I, see: ^ Son of Marcus Arrecinus Clemens, who was Praetorian prefect under emperor Claudius ./cache/en-wikipedia-org-7573.html ./txt/en-wikipedia-org-7573.txt