A short time before the siege commenced, John Justiniani arrived with two Genoese galleys and three hundred chosen troops, and the emperor valued his services so highly that he was appointed general of the guard. The resident bailo of the Venetians furnished three large galleasses and a body of troops for the defence of the port. The consul of the Catalans, with his countrymen and the Aragonese, undertook the defence of the great palace of Bukoleon and the port of Kontoskalion. The cardinal Isidore, with the papal troops, defended the Kynegesion, and the angle of the city at the head of the port down to St. Demetrius. The importance of the aid which was afforded by the Latins is proved by the fact that, of twelve military divisions into which Constantine divided the fortifications, the commands of only two were trusted to the exclusive direction of Greek officers. In the others, Greeks shared the command with foreigners, or else foreigners alone conducted the defence.
When all Constantine’s preparations for defence were completed, he found himself obliged to man a line of wall on the land side of about five miles in length, every point of which was exposed to a direct attack. The remainder of the wall towards the port and the Propontis exceeded nine miles in extent, and his whole garrison hardly amounted to nine thousand men. His fleet consisted of only twenty galleys and three Venetian galleasses, but the entry of the port was closed by a chain, the end of which, on the side of Galata, was secured in a strong fort of which the Greeks kept possession. During the winter the emperor sent out his fleet to ravage the coast of the Propontis as far as Cyzicus, and the spirit of the Greeks was roused by the booty they made in these expeditions.
Muhammed II spent the winter at Hadrianopolis, preparing everything necessary for commencing the siege with vigour. His whole mind was absorbed by the glory of conquering the Roman Empire, and gaining possession of Constantinople, which for more than 1150 years had been the capital of the East. While the fever of ambition inflamed his soul, his cooler judgment also warned him that the Ottoman power rested on a perilous basis as long as Constantinople, the true capital of his empire, remained in the hands of others. Muhammed could easily assemble a sufficient number of troops for his enterprise, but it required all his activity and power to collect the requisite supplies of provisions and stores for the immense military and naval force he had ordered to assemble, and to prepare the artillery and ammunition necessary to insure success. Early and late, in his court and in his cabinet, the young sultan could talk of nothing but the approaching siege. With the writing-reed and a scroll of paper in his hand, he was often seen tracing plans of the fortifications of Constantinople and marking out positions for his own batteries. Every question relating to the extent and locality of the various magazines to be constructed in order to maintain the troops was discussed in his presence; he himself distributed the troops in their respective divisions and regulated the order of their march; he issued the orders relating to the equipment of the fleet, and discussed the various methods proposed for breaching, mining, and scaling the walls. His enthusiasm was the impulse of a hero, but the immense superiority of his force would have secured him the victory with any ordinary degree of perseverance.
The Ottomans were already familiar with the use of cannon. Murad II had employed them when he besieged Constantinople in 1422; but Muhammed now resolved on forming a more powerful battering-train than had previously existed. Neither the Greeks nor the Turks possessed the art of casting large guns. Both were obliged to employ foreigners. An experienced artilleryman and founder, named Urban, by birth a Wallachian, carried into execution the sultan’s wishes. He had passed some time in the Greek service; but even the moderate pay he was allowed by the emperor having fallen in arrear, he resigned his place and transferred his services to the sultan, who knew better how to value warlike knowledge. He now gave Muhammed proof of his skill by casting the largest cannon which had ever been fabricated. He had already placed one of extraordinary size in the new castle of the Bosporus, which carried a ball across the straits. The gun destined for the siege of Constantinople far exceeded in size this monster, and the diameter of its mouth must have been nearly two feet and a half. Other cannon of great size, whose balls of stone weighed 150 pounds, were also cast, as well as many guns of smaller calibre. All these, together with a number of ballists and other ancient engines still employed in sieges, were mounted on carriages in order to transport them to Constantinople. The conveyance of this formidable train of artillery, and of the immense quantity of ammunition required for its service, was by no means a trifling operation.[90]
THE SIEGE BEGINS
[1453 A.D.]
The first division of the Ottoman army moved from Hadrianopolis in the month of February, 1453. In the meantime a numerous corps of pioneers worked constantly at the road, in order to prepare it for the passage of the long train of artillery and baggage wagons. Temporary bridges, capable of being taken to pieces, were erected by the engineers over every ravine and watercourse, and the materials for the siege advanced steadily, though slowly, to their destination. The extreme difficulty of moving the monster cannon with its immense balls retarded the sultan’s progress, and it was the beginning of April before the whole battering-train reached Constantinople, though the distance from Hadrianopolis is barely a hundred miles. The division of the army under Karadja Pasha had already reduced Mesembria, Anchialus, Bizya, and the castle of St. Stephanus. Selymbria alone defended itself, and the fortifications were so strong that Muhammed ordered it to be closely blockaded, and left its fate to be determined by that of the capital.
Muhammed II