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300 CE
400 CE
500 CE
600 CE
700 CE
800 CE
900 CE
1000 CE
1100 CE
1200 CE
1300 CE
1400 CE
306 CE - 337 CE: Reign of Roman Emperor Constantine I.
395 CE - 408 CE: Reign of Byzantine emperor Arkadios.
408 CE - 450 CE: Reign of Byzantine Emperor Thedosius II.
450 CE - 457 CE: Reign of Byzantine emperor Marcian.
457 CE - 474 CE: Reign of Byzantine emperor Leo I.
457 CE: Leo I is crowned by the Patriarch of Constantinople, the first Byzantine emperor to be crowned by a bishop.
474 CE: Reign of Byzantine emperor Leo II.
491 CE - 518 CE: Reign of Byzantine emperor Anastasios I.
518 CE - 527 CE: Reign of Byzantine emperor Justin I.
527 CE - 565 CE: Reign of Byzantine Emperor Justinian I.
565 CE - 578 CE: Reign of Byzantine emperor Justin II.
578 CE - 582 CE: Reign of Byzantine emperor Tiberius II.
582 CE - 602 CE: Reign of Byzantine emperor Maurice.
602 CE - 610 CE: Reign of Byzantine emperor Phocas.
610 CE - 641 CE: Reign of Byzantine emperor Heraclius.
641 CE: Reign of Byzantine emperor Constantine III.
641 CE: Reign of Byzantine emperor Heraklonas.
668 CE - 685 CE: Reign of Byzantine emperor Constantine IV.
685 CE - 695 CE: First reign of Byzantine emperor Justinian II.
695 CE - 698 CE: Reign of Byzantine emperor Leontios.
698 CE - 705 CE: Reign of Byzantine emperor Tiberios II.
705 CE - 711 CE: Second reign of Byzantine emperor Justinian II.
711 CE - 713 CE: Reign of Byzantine emperor Philippikos.
713 CE - 716 CE: Reign of Byzantine emperor Anastasius II
716 CE - 717 CE: Reign of Byzantine emperor Theodosius III.
717 CE - 741 CE: Reign of Byzantine emperor Leo III.
720 CE: Byzantine emperor Leo III makes his son Constantine V co-emperor.
741 CE - 775 CE: Reign of Byzantine emperor Constantine V
775 CE - 780 CE: Reign of Byzantine emperor Leo IV.
780 CE - 790 CE: Empress Irene rules as regent for Byzantine emperor Constantine VI.
780 CE - 797 CE: Reign of Byzantine emperor Constantine VI (with Empress Irene as regent 780-790 CE).
790 CE: Byzantine emperor Constantine VI exiles his mother and regent Empress Irene.
797 CE - 802 CE: Empress Irene rules the Byzantine empire.
802 CE: Byzantine empress Irene is exiled to Lesbos.
802 CE - 811 CE: Reign of Byzantine emperor Nikephoros I.
811 CE: Reign of Byzantine emperor Stavrakios.
811 CE - 813 CE: Reign of Byzantine emperor Michael I.
813 CE - 820 CE: Reign of Byzantine emperor Leo V the Armenian.
820 CE - 829 CE: Reign of Byzantine emperor Michael II.
829 CE - 842 CE: Reign of Byzantine emperor Theophilos.
842 CE - 867 CE: Reign of Byzantine emperor Michael III.
866 CE: Byzantine emperor Michael III makes Basil the Macedonian co-emperor.
867 CE: Basil the Macedonian murders Byzantine emperor Michael III and declares himself Emperor Basil I.
867 CE - 886 CE: Reign of Byzantine emperor Basil I.
869 CE: Byzantine emperor Basil I crowns his son Constantine co-emperor.
870 CE: Byzantine emperor Basil I crowns his son Leo co-emperor (future Leo VI).
912 CE - 913 CE: Reign of Byzantine emperor Alexander.
920 CE - 944 CE: Reign of Byzantine emperor Romanos I Lekapenos.
945 CE - 959 CE: Reign of Byzantine emperor Constantine VII (ruled with a regent from 912 CE).
959 CE - 963 CE: Reign of Byzantine emperor Romanos II.
1025 CE - 1028 CE: Reign of Byzantine emperor Constantine VIII.
1028 CE - 1034 CE: Reign of Byzantine emperor Romanos III Argyros.
1034 CE - 1041 CE: Reign of Byzantine emperor Michael IV the Paphalgonian.
1041 CE - 1042 CE: Reign of Byzantine emperor Michael V.
1042 CE - 1055 CE: Reign of Byzantine emperor Constantine IX.
1042 CE: Reign of Byzantine empresses Zoe and Theodora.
1055 CE - 1056 CE: Reign of Byzantine Empress Theodora (alone).
1056 CE - 1057 CE: Reign of Byzantine emperor Michael VI.
1057 CE - 1059 CE: Reign of Byzantine emperor Isaac I Komnenos.
1059 CE - 1067 CE: Reign of Byzantine emperor Constantine X.
1067 CE - 1071 CE: Reign of Byzantine emperor Romanus IV Diogenes.
1071 CE - 1078 CE: Reign of Byzantine emperor Michael VII.
1078 CE - 1081 CE: Reign of Byzantine emperor Nikephoros III.
1081 CE - 1118 CE: Reign of Byzantine emperor Alexios I Komnenos.
1118 CE - 1143 CE: Reign of Byzantine emperor John II Komnenos.
1143 CE - 1180 CE: Reign of Byzantine emperor Manuel I Komnenos.
1180 CE - 1183 CE: Reign of Byzantine emperor Alexios II.
1183 CE - 1185 CE: Reign of Byzantine emperor Andronikos I.
1185 CE - 1195 CE: Reign of Byzantine emperor Isaac II.
1195 CE - 1203 CE: Reign of Byzantine emperor Alexios III.
1203 CE - 1204 CE: Joint reign of Byzantine emperors Isaac II and Alexios IV.
1204 CE: Reign of Byzantine emperor Alexios IV.
1204 CE: Reign of Byzantine Alexios V.
1259 CE - 1282 CE: Reign of Byzantine emperor Michael VIII.
1282 CE - 1328 CE: Reign of Byzantine emperor Andronikos I.
1293 CE - 1320 CE: Reign of Byzantine emperor Michael IX.
1328 CE - 1341 CE: Reign of Byzantine emperor Andronikos III.
1341 CE - 1376 CE: First reign of Byzantine emperor John V.
1341 CE - 1354 CE: Reign of Byzantine emperor John VI.
1376 CE - 1379 CE: Reign of Byzantine emperor Andronikos IV.
1379 CE - 1391 CE: Second reign of Byzantine emperor John V.
1390 CE: Reign of Byzantine emperor John VII.
1391 CE - 1425 CE: Reign of Byzantine emperor Manuel II.
1425 CE - 1448 CE: Reign of Byzantine emperor John VIII.
1449 CE - 1453 CE: Reign of the last Byzantine emperor Constantine XI.