Constantine alleged to have asked for peace.
Ducas relates that about this time, when the emperor found that the walls which had resisted the Arabs and other invaders were not strong enough to support the attack of Mahomet’s cannon, he sent an offer to pay any amount of tribute which might be imposed on condition that the siege should be abandoned.
His narrative would imply that the offer was made immediately after the transport of the fleet overland.[318]
Mahomet replied to the emperor that it was too late: that he meant to obtain the city or die in the attempt. He, however, made a counter proposal. If the emperor would leave it, he would give him the Morea, would appoint his brother to rule over other provinces, and thus sultan and emperor might live at peace with each other. If this counter proposal were rejected, he declared his intention of putting the emperor and all his nobles to the sword, of allowing his soldiers to take captive the people and to pillage their houses. He himself would be content with the deserted city. Ducas adds that of course the offer of Mahomet was refused, because in what place could the emperor have appeared without meeting the scorn, not only of all Christians, but of Jews and even of the Turks themselves? This proposal is not mentioned by Phrantzes. Gibbon suggests that he is silent regarding it because he wished to spare his prince even the thought of a surrender. Ducas, however, is constantly inaccurate, and it may well be that he was merely relating an unfounded report which was current after the capture of the city, when he himself was but a boy. It is difficult to believe that if any proposal of the kind had been made at the time indicated it would not have been known to Leonard, Barbaro, Pusculus, Tetaldi, or others who were present at the siege, and if known that it would not have been mentioned. Phrantzes, writing in defence of the emperor, says that it is certain that he could have fled from the city if he had so desired and that he deliberately preferred the fate of the Good Shepherd who is ready to lay down his life for his sheep.[319] The same testimony is borne by Critobulus,[320] who says that although Constantine realised the peril which threatened the city, and although he could have saved his own life as many counselled him to do, yet he refused, and preferred to die rather than see the city captured.
Attempts to destroy Turkish ships in harbour.
The sudden appearance of the seventy or eighty ships in the inner harbour of the Golden Horn caused consternation in the city. Every one could understand that if this fleet were not destroyed, the number of men available for the defence of the landward walls must be very greatly lessened. Moreover, the walls now for the first time requiring defence were low and required constant watching. A bridge or pontoon was already in course of construction in the upper part of the Horn beyond the city walls, the use of which was now evident as a means of attacking the harbour walls.
A meeting was hastily called with the consent of the Venetian bailey, and perhaps by him, at which twelve men who had trust in each other were present. Among them was John Justiniani, who had already acquired the confidence not merely of his countrymen and of the emperor but of the Venetians. They met in the church of St. Mary, probably in the Venetian quarter near the present Rustem Pasha mosque, to decide upon the best measures for the destruction of the Turkish ships which had been so strangely carried over Pera Hill.[321] Various proposals were made. It was suggested that the Christian ships in the harbour should make a combined attack upon the Turkish vessels. It was objected that the consent of the Genoese at Galata would be required, and they were known to be unwilling to declare open war against Mahomet. In any case, precious time would be lost in obtaining their consent. The second proposal was to destroy the Turkish guns which had been placed on the western side of Galata to protect the ships, and then to attempt to burn the vessels. This was evidently a dangerous operation, because Zagan Pasha had a detachment of troops in the neighbourhood and the Venetians and Greeks were not sufficiently numerous to risk the loss of a body of Plan decided upon. men upon such an expedition. The third proposal was the one which finally commended itself to the meeting. If not made it was at least strongly supported by James Coco, the captain of a Trebizond galley, a man whom Phrantzes describes as more capable of action than of speech.[322] His project was, without delay, without consulting the Genoese, to make a dash and burn the Turkish ships in Cassim Pasha Bay. He himself offered to undertake the task.
The meeting had been quietly called, and no time had been lost in arriving at a decision. It was of the very essence of Coco’s proposal that it should be executed immediately and that it should be kept secret. His preparations were forthwith put in hand. He chose two transports of five hundred tons each and placed bales of cotton and of wool upon them as armour to prevent damage from cannon-balls. Two large galleys and two of the lighter and swifter kinds of biremes or fustae were to accompany them. Each fusta had twenty-four banks or thwarts and contained seventy-two oarsmen, forty-eight abaft the mast and twenty-four ahead of it. Accompanying each ship was a large boat.[323] Coco’s plan was to employ the two large ships as a screen for the galleys and fustae, so that at the last moment these swift vessels might pull rapidly forward and cut out or burn the Turkish ships.
It was agreed that the vessels should be brought together that same night of April 24, at an hour after sunset, the Eastern method of computing the hours making this a fixed and precise time, and the attack was to be made at midnight. The Genoese heard of the proposed attack and pressed Execution postponed till April 28. the Venetians hard to postpone the execution of the project, in order that they might take part in it. Unluckily, they consented. The preparations of the Genoese took four days. During that period the sultan became aware of what was proposed, added two big guns to those already stationed on the shore at Cassim Pasha to cover his ships, and waited in confidence for the attack.
Contemporary writers charge the Genoese with having betrayed the project to the sultan. Even Leonard evidently believed in the existence of this treachery and hints that he knows more than he cares to tell. Ducas states bluntly that the Genoese told the sultan. Critobulus and Pusculus each affirm that Mahomet had information from Galata.[324] Barbaro adds the further detail that the Podestà, as the mayor of Galata was called, on learning what was proposed to be done, immediately sent word to the sultan at St. Romanus Gate, and speaks of the ‘accursed Genoese’ as ‘enemies of the faith and treacherous dogs’ for so doing.