CONSTANTINOPLE AND CAIRO In recent years, however, signs of a better understanding had appeared, and effective military co-operation between the Franks and the Byzantines had become a possibility. Now that the Latins held Constantinople, the fear of treachery on the part of Byzantium was removed, but so also was the hope of a campaign in which the Saracens would be faced with a united army of Franks and Byzantines. Bald- win of Flanders and his successors who ruled in Constantinople for the next half a century were always in a precarious position. Far from giving aid to Palestine, they themselves had to seek it to maintain their empire against attack. The princes of Europe were already wearied by the repeated appeals from the Holy Land for reinforcements; now appeals for men to support the Latins in Constantinople began to grow as monotonous, and the emissaries of Byzantium and Palestine competed with one another for the favour of the courts of the West. In the past the Holy Land had been the magnet which drew the Westerners who sought adventure overseas. After the Latin occupation of Constantinople, however, many of the adventurous made for the Byzantine Empire, where the need for their services was no less great and the rewards held out to the daring were even greater. Nor was it only by going to the Holy Land that a man could have the privileges, granted by the Church and respected by the secular authorities, extended to those who took part in a Crusade. Rome professed to be shocked that Boniface of Montferrat had diverted the expedition to Constantinople, but the Holy See, which had so often and so anxiously tried to make the Byzantines subject to its authority, nevertheless hastened to take advantage of this opportunity to install a Latin patriarch in the capital and proclaim the Empire as under the ecclesias- tical government of the Church of Rome, The Pope's belief that the Greek Church would accept his authority was, however, disappointed j for though the Latins were in power