In the treaty arranged at the end of the Third Crusade (1192) it was stipulated that all hostilities between the Christians and the Moslems should cease. The Fourth Crusade (1196-1197), which is sometimes considered merely as a movement supplementary to the Third, forced renewed hostilities, against the wishes of the Palestine Christians, who preferred that the three-years' peace should continue. The Fourth Crusade ended disastrously, those who remained longest to prosecute it being finally cut to pieces at Jaffa in 1197. The travellers returning to the West from Syria besought immediate help for the Christian survivors there. The Byzantine empire had fallen into decrepitude, and the Latin kingdom of Jerusalem was reduced to a mere strip of coast. Only by prompt action could it be hoped to save any portion of it from complete wreck. Innocent III, who became pope in 1198, well understood the meaning of the Moslem triumphs. The four crusades had already greatly extended the papal jurisdiction, and Innocent himself was the moving spirit of the Fifth, although an ignorant priest named Fulk also preached it with a success almost equal to that of Peter the Hermit in the first expedition. Vast numbers of warriors took the cross, though no king and only a few minor princes joined them. Most famous among the leaders were Boniface II, Marquis of Montferrat, and Baldwin IV, Count of Flanders.