This is a list of the Emperors of the late Eastern [[Roman Empire]], called [[
Byzantine Empire|Byzantine]] by modern historians. This list does not include numerous coemperors who never attained sole or senior status as rulers.
The title of all Emperors listed preceding Heraclius was officially [[Augustus]], although various other titles such as [[Dominus]] were used as well. For official purposes, their names were preceded by [[
Imperator]] [[ Caesar]] [[Flavius]] and followed by Augustus . Following Heraclius , the title commonly became the Greek [[ Basileus]] ( Gr. Βασιλε