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
Ancient City of Aleppo outside the walls – has an approximate area of , housing more than 120,000 residents. Characterized by its large mansions, narrow alleys, covered souqs and ancient caravanserais, the Ancient City of Aleppo became a UNESCO World Heritage Site in 1986. Many sections in the Al-Madina Souq and other medieval buildings in the ancient city were destroyed and ruined or burnt as a result of clashes between the Syrian Arab Army and the rebel forces of Jabhat al-Nusra, in what is called the Battle of Aleppo, launched by the opposition JN armed groups on 25 September 2012. In February 2014, the