Byzantine Empire /
Leo the Armenian
(775-820) Byzantine emperor 813-820.
Leo was apparently an able but manipulative and unpredictable leader. He distinguished himself primarily in military matters.
Leo reintroduced an Iconoclastic policy, he deposed the Patriarch Nicephorus and convoked a synod at Constantinople to create support for his line.
His motifs for the Iconoclast line may have been more than religious, as the state seized properties of pro-Icon institutions and individuals.
775: Born in Armenia as son of the patrician Bardas.
803: Aids Bardanes Turcus in his fight against Emperor Nicephorus 1, but soon changes his allegiance. He serves as a general under Nicephorus.
Late 800's: Is exiled after marrying the daughter of an opponent of the emperor.
811: When Michael 1 Rangabe becomes emperor, is Leo appointed governor of the Anatolic theme
812: Wins important battles against the Abbasids.
813: June 22: After Michael loses most of his supporters, Leo moves in and has him deposed, then appoints himself emperor.
Bulgarian invasion by Khan Krum has reached the walls of Constantinople. Leo manages to drive them back.
814: Krum dies, and Leo defeats the Bulgarians at Mesembria (modern Nesebar, Bulgaria).
815: Concludes a treaty with new Bulgarian khan, Omortag, in which the border between the countries is drawn. This resulted in a 30 year long peace.
815 March: Deposes the Orthodox patriarch Nicephorus.
April: Convokes a synod that reimposes iconoclast decrees.
820 December 24: Condemns Michael the Amorian to death for treason.
December 25: Is assassinated in Constantinople by allies of Michael the Amorian, while praying in the Hagia Sophia. Immediately, Michael has himself proclaimed new emperor.