When and how did the fourth crusade end?

The Fourth Crusade culminated in 1204, when Crusaders captured Constantinople, leading to the establishment of the Latin Empire. Initially intended to reclaim Jerusalem, the crusade diverted to Constantinople due to political and financial motivations. The sack of the city resulted in widespread looting and destruction, profoundly impacting Byzantine history and setting a precedent for future relations between the East and West. The crusade officially ended in 1261 when the Byzantines regained control of the city, but the Latin Empire lasted until 1261.