Leo V the Armenian was the Byzantine emperor from 813 to 820. He is chiefly remembered for ending the decade-long war with the Bulgars, as well as initiating the second period of Byzantine iconoclasm.
Depiction of Leo from the 12th century Madrid Skylitzes.
Proclamation of Leo as emperor.
Patriarch Theodotus I reinstates iconoclasm at the Council of Constantinople.
The Byzantines crush the Bulgars near Mesembria.
Theodotus I of Constantinople ou Theodotos I Kassiteras, latinised as Theodotus I Cassiteras was the Ecumenical Patriarch of Constantinople from 1 April 815 to January 821.
Consecration of Theodotus Melissenos as patriarch of Constantinople, miniature from the Madrid Skylitzes