Pope Innocent III excommunicated all of its participants when they attacked the Dalmatian capital in exchange for assistance from Enrico Dandolo, the doge of Venice.
During this conflict, two ships, forced to turn back after a premature departure from Marseilles, were shamefully met by the main fleet going in the opposite direction. Within three years of its end, two of its leaders, Baldwin and Boniface, were both killed by Bulgarians. Pope Innocent III excommunicated all of its participants when they attacked the Dalmatian capital in exchange for assistance from Enrico Dandolo, the doge of Venice. After that siege of Zara, they established the Latin Empire by laying siege to a city on the Bosporus. For 10 points, identify this crusade whose participants sacked Constantinople.
During this conflict, two ships, forced to turn back after a premature departure from Marseilles, were shamefully met by the main fleet going in the opposite direction.
Fourth Crusade