Taurica | Lazica (532/562 AD) | Quaestura exercitus (536 AD) | Spania (552 AD)
Notes
Provincial administration reformed by Diocletian, ca. 293 AD. Praetorian Prefectures established by Constantine I in 318 AD. Empire permanently partitioned in 395 AD. Exarchates of Ravenna and Africa established after 584 AD. Provinces replaced by Theme system, ca. 640 AD. * affected (boundaries modified/abolished/renamed) by Justinian's administrative reorganization in 534-536 AD † re-established after reconquest by the Eastern Empire in 534 AD, as the separate praetorian prefecture of Africa