Latin Empire

The Latin Empire or Latin Empire of Constantinople (original Latin name: Imperium Romaniae, "Empire of Romania") is the name given by historians to the Crusader state founded by the leaders of the Fourth Crusade on lands captured from the Byzantine Empire after their sack of Constantinople in 1204. The Empire was intended to supplant the Byzantine Empire as titular successor to the Roman Empire in the east, with a Western Catholic emperor enthroned in place of the Byzantine Greeks. Baldwin IX, Count of Flanders, was crowned Emperor as Baldwin I on 16 May, 1204.
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