The Prince-Bishopric of Montenegro (Serbian: Митрополство Црногорско, romanized: Mitropolstvo Crnogorsko) was an ecclesiastical principality that existed from 1516 until 1852. The principality was located around modern-day Montenegro. It emerged from the Eparchy of Cetinje, later known as the Metropolitanate of Montenegro and the Littoral, whose bishops defied the Ottoman Empire overlordship and transformed the parish of Cetinje into a de facto theocracy, ruling it as Metropolitans (Vladike, also known as prince-bishops). The first prince-bishop was Vavila. The system was transformed into a hereditary one by Danilo Šćepčević, a bishop of Cetinje who united the several tribes of Montenegro into fighting the Ottoman Empire that had occupied all of Montenegro and most of southeastern Europe a