EPARCH, an official, a governor of a province of Roman Greece, Eirapxos, whose title was equivalent to, or represented that of the Roman praefectus. The area of his administration was called an eparchy (Eirapxia). The term survives as one of the administrative units of modern Greece, the country being divided into nomarchies, subdivided into eparchies, again sub divided into demarchies (see GREECE : Local Administration). "Eparch" and "eparchy"' are also used in the Russian Orthodox Church for a bishop and his diocese respectively.