Dioceses of the Church of the East to 1318 to represent them. None of these four dioceses is mentioned again, and it is not clear when they lapsed. By the end of the 5th century there were at least three East Syriac dioceses in the Sassanian province of Media in western Iran. Canon XXI of the synod of Isaac in 410 foreshadowed the extension of the metropolitan principle to the bishops of Beth Madaye and other relatively remote regions. Hamadan (ancient Ecbatana) was the chief city of Media, and the Syriac name Beth Madaye (Media) was regularly used to refer to the East Syriac diocese of Hamadan as well
Bagaran (ancient city) Bagaran (ancient city) Bagaran (), was a city in Ancient Armenia founded during the reign of the Orontid Dynasty. It is one of the Historical capitals of ancient Armenia. According to the Armenian historian Movses Khorenatsi, Bagaran was founded during the 3rd century BC by king Orontes IV of Armenia. It quickly became the religious centre of Armenia, replacing Armavir as the main spiritual site of the Orontid pagan temples. After fall of Orontid Dynasty and the rise of Artaxiad dynasty, king Artaxias I moved all the pagan monuments from Bagaran and relocated them in his newly built capital of