Thus their peril and toil lasted for nearly ten days, until, on a Thursday morning (I7th July I203) all things were ready for the assault, and the ladders in trim; the Venetians also had made them ready by sea. The order of the assault was so devised, that of the seven divisions, three were to guard the camp outside the city, and other four to give the assault. The Marquis Boniface of Montferrat guarded the camp towards the fields, with the division of the Burgundians, the division of the men of Champagne, and Matthew of Montmorency. Count Baldwin of Flanders and Hainault went to the assault with his people, and Henry his brother; and . Count Louis of Blois and Chartres, and Count Hugh of St. Paul, and those who held with them, went also to the assault.

They planted two ladders at a barbican near the sea; and the wall was well defended by Englishmen and Danes; and the attack was stiff and good and fierce. By main strength certain knights and two sergeants got up the ladders and made themselves masters of the wall; and at least fifteen got upon the wall, and fought there, hand to hand, with axes and swords, and those within redoubled their efforts and cast them out in very ugly sort, keeping two as prisoners' And those of our people who had been taken were led before the Emperor Alexius; much was he pleased thereat. Thus did the assault leave matters on the side of the French. Many were wounded and many had their bones broken, so that the barons were very wroth.

Meanwhile the Doge of Venice had not forgotten to do his part, but had ranged his ships and transports and vessels in line, and that line was well three crossbow-shots in length; and the Venetians began to draw near to the part of the shore that lay under the walls and the towers. Then might you have seen the mangonels shooting from the - ships and transports, and the crossbow bolts flying, and the bows letting fly their arrows deftly and well; and those within defending the walls and towers very fiercely; and the ladders on the ships coming so near that in many places swords and lances crossed; and the tumult and noise were so great that it seemed as if the very earth and sea were melting together. And be it known to you that the galleys did not dare to come to the shore.