Constantine IV
Byzantine emperor from 668 to 685 · Politicians · Lived 652 to 685 · aged 33
Constantine IV is read about 268 times a day, in 56 languages.
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Something wrong?A Byzantine emperor who stopped the Arab siege of Constantinople in the 670s when the city seemed destined to fall - the first major brake on an empire that had rolled over half the known world for nearly fifty years.
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Constantine IV took the throne in 668 with the Byzantine Empire reeling from decades of defeats and internal chaos. The Arabs had been advancing almost without check since the 620s, swallowing Syria, Egypt, North Africa. When they laid siege to Constantinople itself, he held the walls and broke them - a rare reversal that steadied an empire on the edge of collapse. He used the breathing room to settle a theological fight that had torn Byzantium apart for decades: in calling the Sixth Ecumenical Council, he ended the monothelitism controversy. He died on 10 July 685, after seventeen years in power, venerated by the Eastern Orthodox Church as a saint.
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