The crusaders knew about him! By his quick thinking and crafty talking this same Alexius, Emperor Alexius I, had not only persuaded their grandsires and great-grandsires of an earlier crusade to stay out of Constantinople, but he had also talked them into fighting the Turks for him. He had even talked some of them into becoming his vassals. He had received the leaders in the Sacred Palace, however, and they told the other barons what they saw there. From then on Constantinople was a city of marvels to the men of the Middle Ages. They also began to covet its wealth.
To be sure, not all the crusaders were happy at the thought of attacking another Christian city, especially when they remembered how angry the Pope had been at the taking of Zara, also a Christian city. But the doge of Venice had an answer for every objection.
The Byzantines, the people of Constantinople, were not really true Christians at all, he said. They were heretics.
The crusaders were not conquering Constantinople; they were restoring it to its rightful ruler. On board was the young Alexius, who ought to sit on the throne as Alexius IV. Alexius was a worthless young man, but his father had been emperor until he was deposed and blinded by his own brother.
Besides that, how could the crusaders pay back Venice all they owed her if they did not take Constantinople?
The young Alexius not only promised that he would settle all their debts if they took the city for him, but that he would give them enough money to go on to their destination. He said that he would ride with them at the head of a Byzantine army of 10,000 soldiers. He promised that as long as he lived he would equip and maintain out of his own treasury 500 of their knights.
A majority of the brave knights were convinced by these arguments and by the thought of all the fighting men and gold. Among them was Geoffrey of Villehardouin who tells us most of what we know about the Fourth Crusade.
It took almost a month to make the voyage. After the crusaders rounded the tip of Greece, they sailed past the remains of ancient Sparta, past Athens, and at the island of Andros they stopped for water. A little later, they drifted past the site of the ancient town of Troy. Finally, they touched at Abydos on the historic Dardanelles, where they raided the countryside and filled their holds with grain. “Great was the need thereof!” muttered Geoffrey.
On June 23, 1203, they dropped anchor within sight of Constantinople. The snow-covered Thracian mountains lay to the west, and grape-colored Asia Minor to starboard. “And be it known to you,” scratched out Villehardouin, his pulses beating, “that no man among us was so hardy that he did not tremble.” For in every direction, there was nothing but high walls and towers and rich palaces and mighty churches.
The next morning banners and pennants were flown from the castles of every ship. The coverings were taken from the shields. The bulwarks were made ready for action. Then the sailors weighed anchor and spread sails to the wind.