List of Byzantine emperors

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For a list of emperors starting with Augustus, see List of Roman emperors.

Further information: History of the Byzantine Empire.

This is a list of the Byzantine emperors from the foundation of Constantinople in 330 AD, which marks the conventional start of the Byzantine Empire (or the Eastern Roman Empire), to its fall to the Ottoman Empire in 1453 AD. Only the emperors who were recognized as legitimate rulers and exercised sovereign authority are included, to the exclusion of junior co-emperors (symbasileis) who never attained the status of sole or senior ruler, as well as of the various usurpers or rebels who claimed the imperial title.

Traditionally, the line of Byzantine emperors is held to begin with the Roman Emperor Constantine the Great, the first Christian emperor, who rebuilt the city of Byzantium as an imperial capital, Constantinople, and who was regarded by the later emperors as the model ruler. It was under Constantine that the major characteristics of what is considered the Byzantine state emerged: a Roman polity centered at Constantinople and culturally dominated by the Greek East, with Christianity as the state religion.

The Byzantine Empire was the direct legal continuation of the eastern half of the Roman Empire following the division of the Roman Empire in 395. Emperors listed below up to Theodosius I in 395 were sole or joint rulers of the entire Roman Empire. The Western Roman Empire continued until 476. Byzantine emperors considered themselves to be rightful Roman emperors in direct succession from Augustus;^[2] the term "Byzantine" was coined by Western historiography only in the 16th century. The use of the title "Roman Emperor" by those ruling from Constantinople was not contested until after the Papal coronation of the Frankish Charlemagne as Holy Roman Emperor (25 December 800 AD), done partly in response to the Byzantine coronation of Empress Irene, whose claim, as a woman, was not recognized by Pope Leo III.