= Roman Prefectures = The empire was administratively divided into '''praetorian prefectures''' (''praefectura praetorio'', plural ''praefecturae praetorio'') during the [[WorldHistory/RomanEmpire/Tetrarchy|tetrarchy]]. <> ---- == History == The title '''praetorian prefect''' (''praefectus praetorio'') originated as the commanders of the Praetorian Guard. Over time, the role evolved into that of an advisor, and finally into that of a grand vizier. Under the [[WorldHistory/RomanEmpire/Tetrarchy|tetrarchy]], each of the four quarters of the empire were administered by a praetorian prefect. ---- == Prefectures == === Galliarum === Composed of the [[WorldHistory/RomanEmpireDioceses|dioceses]] of Gaul, Britain, Spain, and Vienna. === Italiae === Composed of northern and southern Italy, Africa, and Pannonia. In 347, Italiae was split to create Illyrici; Dacia, Macedonia, and Pannonia were removed. Pannonia returned to Italiae by 395. === Illyrici === Composed of Dacia and Macedonia. Split out from Italiae in 347. Pannonia was originally part of Illyrici in that reorganization, but was moved back to Italiae by 395. === Orientis === Composed of Thracia, Asia, Pontus, the East, and Egypt. Egypt was elevated to a diocese, but retained in the Diocese of the East, in 380. ---- CategoryRicottone