Holy Warriors (52 page)

On several occasions the Hussites roundly defeated the crusaders, often because of their innovative military skills. The use of wagons, sometimes drawn into a rectangular formation or else used as a mobile defensive barrier for infantry and cavalry, or even as a base for small cannon, was one element in their repertoire.
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Hussite forces spread into neighboring lands such as Poland, Hungary, and Austria but local anti-Czech nationalism often blunted their religious message. Further crusades in 1427 and 1431 also failed; Hussite beliefs survived in Bohemia and in subsequent years a negotiated compromise was reached—a settlement in part engendered by increasing fear of the most powerful and dynamic force in southeastern Europe, the Ottoman Turks.

In the course of the fourteenth century the main forum of crusading warfare in the eastern Mediterranean became Constantinople and the Balkans, a shift prompted by the remorseless rise of the Ottoman Empire. The Ottomans were a nomadic tribe from northwestern Asia Minor who had emerged under the leadership of Osman, a frontier warlord, at the very start of the fourteenth century. Their origins are somewhat hazy but early on the presence of large numbers of ghazis (volunteers dedicated to the holy war who fought in the expectation of booty and who were treated as martyrs on their death) and Sufi mystics gave them a strong religious drive. A series of victories against Muslim and Byzantine Christian opponents convinced them that God was on their side. By the middle of the century they had established a strong territorial base in northwestern Anatolia and begun to push through the Dardanelles and into southeastern Europe. In 1389 the Ottomans destroyed a Serbian army at Kosovo, another battle that has remained strong in modern regional consciousness. The immensity of the
Turkish threat began to concentrate minds in Catholic Europe in a way not seen for decades. Coupled with a rare window of peace in the Hundred Years War, and inflamed by the crusading enthusiasm of John of Nevers, son of the duke of Burgundy, and Marshal Boucicaut, this generated a substantial army ready to turn back the Ottoman menace. Boucicaut’s biographer evoked the spirit in which the French nobility joined the crusade: “he [John of Nevers] was then in the full flower of youth, and wanted to follow the path sought by the virtuous, that is to say, the honour of knighthood. He considered that he could not use his time better than in dedicating his youth to God’s service, by bodily labour for the spreading of the faith . . . several young lords wanted to go along, to escape boredom and employ their time and energies on deeds of knighthood. For it really seemed to them that they could not go on a more honourable expedition or one more pleasing to God.”
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The results of the expedition were, however, catastrophic.

In July 1396 the French linked up with King Sigismund of Hungary at Buda and a combined army of perhaps fifteen to twenty thousand men began to march down the Danube intent upon the recovery of Nicopolis, a strong defensive site in Bulgaria. After this the crusade planned to move on to Constantinople and relieve the city from a siege led by Sultan Bayezid I (1389–1402), known as Yilderim, or Thunderbolt. Early successes lulled the Christians into a sense of complacency and as they blockaded Nicopolis their camp became a scene of indiscipline and licentiousness; Bayezid, meanwhile, had gathered his troops and was approaching fast. On September 25 the two sides met in battle. The French impetuously hurled themselves against Bayezid’s infantry and light cavalry who were carefully positioned at the top of a hill. Stakes in the ground tore the crusaders’ horses to pieces, but although they fought on foot, so great was their momentum that they succeeded in cutting their way up past the Turkish infantry to face the light cavalry. At this point they discovered Bayezid’s trap: waiting on the other side of the hill, fresh and rested, were his heavy cavalry. The Ottomans charged and the crusaders, from being convinced of their success, collapsed: “the lion in them turned into a timid hare,” commented one contemporary. Thousands of men were killed or taken prisoner, an earlier massacre of Turks was avenged by the summary execution of countless Christians, and Count John and Marshal Boucicaut were imprisoned. The debacle of Nicopolis was a massive blow to crusading morale in western Europe
and it gave the Turks free access to continue their conquest of the Balkans.
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In 1402 their momentum was briefly stalled by defeat at the hands the Turcoman ruler Timur (also known as Tamerlane) at the Battle of Ankara, and a period of dynastic infighting checked their progress further, but within a couple of decades they were looking to expand again.
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The Turks’ prime target was clearly Constantinople, in part because of its immense wealth and importance to Christianity, in part because it lay directly between Ottoman lands in Anatolia and their possessions in the Balkans. The Greeks had regained the city from the Latins in 1261, but only a pale shadow of past glories survived; that said, it did survive blockades and sieges from 1394 to 1402 and in 1442. So great was the Ottoman menace that Emperor John VIII was persuaded to grasp the nettle of Church unity and in 1439 he led a delegation to Florence where, after centuries of division, the union of the Catholic and Orthodox—with the former as the senior partner—was finally proclaimed. This provoked outrage among some of the Greeks: “We have betrayed our faith. We have exchanged piety for impiety.”
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John, however, received the reward he was after with a new crusade in 1444. This saw another heavy defeat for the Christians at the town of Varna on the west coast of the Black Sea (in modern-day Bulgaria) when Ottoman troops, fighting under the banner of jihad, entirely crushed their opponents.
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In 1451, Mehmet II, known to posterity as Mehmet the Conqueror, became sultan at the age of seventeen (he had held the title briefly between 1444 and 1446). Two years later this remarkable character struck Christendom an enormous blow with the capture of Constantinople. He was a brave, secretive, and utterly ruthless man; he was also a scholar and a superb strategist. He is described as having a hooked nose and fleshy lips, or “a parrot’s beak resting on cherries” as a poet so colorfully expressed it. Two actions early on in his sultanate—one a combination of the private and the political, the other strategic—give a sense of the man. First, as soon as he became ruler, he ordered his infant half-brother to be drowned in his bath (the perpetrator was then executed for murder); thus he enshrined fratricide as a means of preventing civil war. Secondly, he commissioned the construction of the castle of Bogaz Kesa, the Throat-Cutter, a few miles east along the Bosporus. This fine fortress (known today as Rumeli Hisari) has four large and thirteen smaller towers and was completed in a matter of
months, testimony to the superbly efficient Ottoman war machine. As the name of the castle suggests, it was designed to block the passage of Christian shipping along the Bosporus and thereby to close the net around Constantinople.

Within the city, Emperor Constantine IX (1449–53) viewed these developments with understandable trepidation.
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He appealed to the West for help, but other than some support from the Venetians, who still retained an interest in Constantinople long after their part in the 1204 conquest, no major forces arrived. The Genoese held a colony at Galata, just across the Golden Horn, and while they professed neutrality, their men and shipping also came to play a vital role in the defense of the city. Even with such limited outside assistance the sheer strength of Constantinople’s fortifications made it a formidable site. The emperor commanded ditches to be cleared while the dilapidated outer walls were restored and covered with huge bales of cotton and wool to try to cushion them from cannon fire. He also ordered the fabrication of a huge boom, made from massive sections of wood and iron links, to span the Golden Horn and protect the more vulnerable walls on the inlet—the area where the Fourth Crusade had broken into the city. Contemporaries indicate the defenders’ great faith in this construction and their confidence that, in conjunction with the mighty city walls, it would enable them to endure once more.
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It is interesting to compare the two great sieges of 1204 and 1453. Aside from the obvious contrast of the latter episode being Muslim against Christian, rather than Catholics versus Orthodox, the size of the opposing forces was strikingly different. In 1204 the crusaders were massively outnumbered by the Byzantines; in 1453, however, the Christian troops in Constantinople totaled perhaps ten thousand. Notwithstanding the defensive efforts of the citizenry—and even monks were pressed into service—in military terms, at over eighty thousand men (plus tens of thousands of laborers) the Ottoman army was a vastly bigger fighting force, mighty enough for a Venetian eyewitness to describe the defenders as “an ant in the mouth of a bear.”
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The 1453 siege was also more multifaceted with a significant part of the fighting taking place on water. During the earlier campaign the besieging Venetians had enjoyed almost a free hand at sea, but in 1453 an Ottoman fleet of up to four hundred ships frequently tussled with a small but powerful Genoese and Cretan force based around the defensive boom. Finally, technology had
moved on: by 1453 the emergence of gunpowder (during the late thirteenth century) meant that cannon came to play a hugely prominent role in the later campaign.
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The siege began on April 6. Mehmet’s engineers had constructed a massive palisaded rampart that ran from the Sea of Marmara to the Golden Horn while a similar structure overlooked the city from the Galata side. With siege guns and catapults the Turks soon began to bombard the “queen of cities.” Teams of workmen had strengthened roads and bridges to allow the transportation of several colossal cannon—one required sixty oxen to pull it—from their base at Edirne, 250 miles to the northwest. Most of the firepower concentrated on the gates of Saint Romanus (now known as the Topkapi Gate) and Charisus, both toward the middle of the land walls. The Turks’ largest gun burst, but one of the others remained a monstrous piece of weaponry, capable of firing a shot of almost 550 kilograms. Mehmet had over fourteen batteries of cannon, most of which could launch balls of between 100 and 200 kilograms. Day after day these machines generated a lethal hail of stone that crashed and smashed against the walls of Constantinople, splintering its defenses and demoralizing the defenders. Mehmet was canny enough to continually reposition his cannon to best advantage, and at times he triangulated three guns on a single point to maximize their effect. The Byzantines had artillery of their own but these were far smaller devices and used mainly against troops and siege engines; lack of powder and shot were further restrictions on the Christians’ firepower: by contrast, Mehmet’s biggest cannon consumed 1,100 pounds of gunpowder a day! A contemporary noted: “He devised machines of all sorts . . . especially of the newest kind, a strange sort, unbelievable when told of but, as experience demonstrated, able to accomplish everything.”
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Nicolò Barbaro, a Venetian eyewitness, described the debilitating effect of living in continuous anticipation of a major assault. Such tensions were increased by a series of night attacks, usually heralded by the harsh cracking and snapping of castanets, but all were successfully resisted. On April 20, however, the Christians scored an unexpected victory. The appearance of three large Genoese vessels bearing papally sponsored troops and supplies prompted a sea battle. Mehmet’s admiral engaged the galleys but the greater size of the Genoese boats gave them a crucial advantage over the oared Turkish ships and the Christians used their superior height to pour down arrows and small-arms fire onto their enemy. As Mehmet watched from the
shore he grew increasingly enraged at the lack of progress and, famously, he mounted his horse and plunged into the sea to bellow inaudible advice to his admiral. Once the wind turned, the Christian vessels were able to reach the safety of the boom and this duly opened to bring them sanctuary. The defeat was a massive blow to Ottoman pride and caused consternation in the Muslim camp. Mehmet was beside himself with rage and summoned the admiral to answer for this failure—the sultan was said to have wanted to execute the man, but his colleagues persuaded their ruler that the loss of rank and a flogging would suffice.
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The Christians’ continued trust in the boom seemed well placed, but Mehmet was not to be resisted. Because he could not break the barrier the sultan devised a quite brilliant way to—literally—get around it. As we saw with Reynald of Châtillon’s transportation of kit-form ships from Kerak down to the Red Sea in 1182, it was possible to move vessels overland. Others had followed his example; more recently the Venetians had shifted galleys from the River Adige to Lake Garda. Mehmet accomplished something similar, although on a jaw-dropping scale. His engineers constructed a shallow trench that ran from the shore of the Bosporus, up over the steep hill (through the modern Taksim Square) and then down to the Golden Horn. This carefully crafted ditch was then covered in boards and greased, allowing ships to be laboriously hauled up the slope and then eased downhill behind the boom and into the heart of the Christian harbor. An incredible seventy-two vessels made this journey and once back in the water their sails were rerigged and they could threaten the weakest walls of Constantinople. The creation of a pontoon bridge to link up the troops near Galata with those by the land walls was another sign of technical flair and a hint that a major assault was brewing.

On April 28 the Christians attempted to seize the upper hand with a bid to destroy the main Ottoman fleet. They filled transport ships with sacks of flammable materials—cotton and wool—to set the Turkish boats ablaze, but the flotilla’s commander, “a man eager to win honour in this world,” raced ahead of the escort vessels and drew the full weight of enemy firepower. The Turks scored a direct hit on only their second shot and “quicker than ten paternosters” the ship sank with all hands to ruin the Christian offensive.
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Soon the Ottomans regained the initiative and in mid-May heavy bombardment of the gates of Saint Romanus and the Caligaria (near the Blachernae Palace in the north) called for the most desperate resistance.