What ruled Constantinople for 50 years during the early 1200s?

Constantinople was ruled by the Latin Empire from 1204 to 1261, following the Fourth Crusade, which resulted in the city's capture by Western European forces. This period marked significant political and cultural changes, as Latin Christians took control of the Byzantine capital. The Latin Empire struggled with internal conflicts and external pressures, ultimately leading to its downfall and the restoration of the Byzantine Empire in 1261.