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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. |