History glossary

Fourth Crusade

the 1202-1204 crusade diverted by debt and politics into attacks on Zara and Constantinople.

Category
Crusade
Region
Adriatic, Byzantium, and eastern Mediterranean
Date range
1202-1204

What it means

The Fourth Crusade was called to attack Egypt as a route toward recovering Jerusalem, but it became entangled in debt to Venice and Byzantine succession politics. Crusaders attacked Zara in 1202 and then sacked Constantinople in 1204, a Christian capital. The episode became one of the clearest examples of crusading aims being redirected by finance, ambition, and political opportunity.

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