Five-volume work by A.M. Velichko's "History of the Byzantine Emperors" reveals the events of the reign of all the monarchical dynasties of the Holy Roman (Byzantine) Empire - from St. Constantine the Great until the fall of Constantinople in 1453. This is the first comprehensive study in which historical events from the political life of the Byzantine state are depicted in their organic relationship with the life of the ancient Church and the personality of specific kings. The work depicts in detail and detail the most interesting vicissitudes of the history of the Byzantine Empire, including in terms of inter-church relations between Rome and Constantinople. Numerous events from the times of the Ecumenical Councils are presented, the role and forms of participation of emperors in the activities of the Catholic Church are revealed. The work is supplied with portraits of all the emperors of the Byzantine Empire, maps and extensive reference material. For all those interested in the history of Byzantium, the Church, law and politics, as well as students of law and history. This volume covers the era from Justin I (518–527) to Theodosius III ( 518–527).