How did the crusade which initially had benefited Constantinople come to harm the city?

Answer 1

The Crusades initially benefited Constantinople by strengthening its defenses and boosting trade as Western European powers sought to aid the Byzantine Empire against Muslim threats. However, the Fourth Crusade in 1204 drastically harmed the city when Crusaders diverted their mission to attack Constantinople instead of proceeding to the Holy Land. This led to widespread looting, destruction, and the establishment of the Latin Empire, weakening Byzantine authority and leaving the city vulnerable to future attacks. Ultimately, the internal strife and diminished power resulting from the Crusades contributed to the eventual fall of Constantinople to the Ottomans in 1453.