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Fall of Constantinople
 
State of the Byzantine Empire
 
Preparations
 
Siege and final assault of the city
 
Aftermath
 
References
State of the Byzantine Empire


In the approximately 1,000 years of the existence of the Byzantine Empire, Constantinople had been besieged many times; it had been captured only twice, during the Fourth Crusade in 1204 and when the Byzantines retook it decades later: the crusaders had not originally set out to conquer the Empire, and the Byzantines re-established themselves in the city in 1261.

In the following two centuries, the much-weakened empire was gradually taken piece by piece by a new threat, the Ottoman Empire.

In 1453 the "empire" consisted of little more than the city of Constantinople itself and a portion of the Peloponnese (centered on the fortress of Mystras); the Empire of Trebizond, a completely independent successor state formed in the aftermath of the Fourth Crusade also survived on the coast of the Black Sea.