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Constantinople: Roman Emperor
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Constantinople was the name of the city corresponding to present-day Istanbul, from 324 until it officially was renamed Istanbul in 1930. The city never really had the name Constantinople, but the name was popularly used by people in remembrance of its founder, Emperor Constantine.
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[I]n 1276, Constantinople was conquered by Nikaia (some defenders had changed sides, after receiving a big bribe). The Latin Emperor fled to Athens. Nikaia's energy and power wasn't sufficient for further attacks on Epirus and other Crusader states.... Emperor Michael had to start talks with the west about a reunification of the churches.
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[I]n 1224 the despot of Epirus, Theodore Angelus ... laid claim the throne of Constantinople. The Despotate of Epirus had been set up by Michael Angelus in 1204 at the fall of Constantinople. Now Michael's heir Theodore had managed to conquer Thessalonika and had been crowned emperor of Constantinople, becoming another pretender.
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