Roman Empire Βασιλεία Ῥωμαίων 1081–1185 Alleged emblem of the Komnenos Family The Byzantine Empire during the reign of Manuel I Komnenos, ca. 1170 Capital Constantinople Common languages Greek, Armenian, Old Bulgarian and other South Slavic languages Religion Eastern Orthodox Church Government Autocracy Emperor • 1081–1118 Alexios I • 1183–1185 Andronikos I History • Battle of Manzikert 26 August 1071 • Coronation of Alexios I 4 April 1081 • The First Crusade is declared 27 November 1095 • Battle of Myriokephalon 17 September 1176 • Deposition of Andronikos I 31 August 1185 Preceded by Succeeded by Byzantine Empire under the Doukas dynasty Byzantine Empire under the Angelos dynasty