The Bishop of Alexandria also has the title of "archbishop." This is a natural jurisdictional title for the ecclesiastical dignity of the Bishop of Alexandria. Ruling as a "metropolitan", the bishop of the metropolis (i.e. Alexandria), had jurisdiction over the Roman Provinces of Egypt (Lower Egypt I and II, Arcadia Ægypti, Upper Egypt I and II (aka Thebais Prima and Thebais Secunda), Pentapolis, Libya and Nubia, which were at that time, the extent of the “Egyptian Provinces” within the Roman Empire. As set by the Ecumenical First Council of Nicaea 325 AD, the jurisdiction of the Archiepiscopate of Alexandria covered the above-mentioned provinces.