Siege of Belgrade
| Siege of Belgrade | |||||||
|---|---|---|---|---|---|---|---|
| Part of the Ottoman wars in Europe | |||||||
| |||||||
| Combatants | |||||||
| Ottoman Empire | Kingdom of Hungary Wallachia | ||||||
| Commanders | |||||||
| Mehmet II | John Hunyadi | ||||||
| Strength | |||||||
| ~ 60,000 – 70,000 300 cannons 200 ships |
~ 40,000 – 50,000 (+ 5,000 – 7,000 garrison) | ||||||
| Casualties | |||||||
| About 50,000 |
About 10,000 | ||||||
The Siege of Belgrade occurred from July 4 to July 22, 1456. After the fall of Constantinople in 1453, Ottoman sultan Mehmed II was rallying his resources in order to subjugate the Kingdom of Hungary. His immediate objective was the border fort of the town of Belgrade. John Hunyadi, a Hungarian nobleman and warlord of Vlach lineage, who fought many battles against the Ottomans in the previous two decades, expected just such an attack.
The siege eventually escalated into a major battle, during which Hunyadi led a sudden counterattack that overran the Turkish camp, ultimately compelling the wounded Sultan Mehmet II to lift the siege and retreat.
During the siege, Pope Callixtus III ordered the noon bell, to call believers to pray for the defenders, but as in many places the news of victory arrived earlier than the order, it transformed into the commemoration of the victory, and the Pope modified his the order to fit this interpretation. Hence the noon bell is still rung to this day for the memory of Hunyadi's victory.
| Ottoman-Hungarian Wars |
|---|
| Nicopolis – Varna – Kosovo – Belgrade – Mohács |
Preparations
At the end of 1455, after a public reconciliation with all his enemies, Hunyadi began preparations. At his own expense he provisioned and armed the fortress, and leaving in it a strong garrison under the command of his brother-in-law Mihály Szilágyi and his own eldest son László, he proceeded to form a relief army and a fleet of two hundred corvettes. As no other baron was willing to help (fearing Hunyadi's growing power more than the Ottoman threat), he was left entirely to his own resources.
His one ally was the Franciscan friar, Giovanni da Capistrano, who preached a crusade so effectively that the peasants and yeomanry, ill-armed (most of them had only slings and scythes) but full of enthusiasm, flocked to the standard of Hunyadi, the kernel of whose host consisted of a small band of seasoned mercenaries and a few banderia of noble horsemen. All in all, Hunyadi could build a force of 25,000–30,000 men.
Siege
However, before these forces could have been assembled, Mehmet II's invasion army (160,000 men in early accounts, 60,000-70,000 according to newer research) arrived at Belgrade. On July 4, 1456, the siege began. Szilágyi could only rely on a force of 5,000-7,000 men in the castle. Mehmet set up his siege on the neck of the headland and started firing on the walls on June 29, 1456. He arrayed his men in three sections. The Rumelian (that is, European) corps had the majority of his 300 cannons, and his fleet of 200 or so river vessels had the rest. The Rumelians were arrayed on the right wing and the Anatolian corps was arrayed on the left. In the middle were the sultan's personal guards, the janissaries, and his command post. The Anatolian corps and the janissaries were both heavy infantry type troops. He posted his river vessels mainly to the northwest of the city to patrol the marshes and make sure that the fortress wasn't reinforced. They also kept an eye on the Sava to the southwest to avoid the possibility of the infantry being outflanked by Hunyadi's army. The Danube to the east was guarded by the spahi, the sultan's light cavalry corps, to avoid being outflanked on the right. These formidable forces were resisted by only about 7,000 men in the fortress, although the Serbian townsfolk helped resist Muslim attacks as well.
When word of this got to Hunyadi, he was in the south of Hungary recruiting additional light cavalry troops for the army with which he intended to lift the siege. Although relatively few of his fellow nobles had been willing to provide manpower, it just so happened that the peasants were more than willing to do so. Cardinal Giovanni Capistrano had been sent to Hungary by the Vatican both to preach against heretics like Greek Orthodox Christians and to preach the Crusade against the Ottomans. He managed to raise a large, albeit poorly trained and equipped peasant army, with which he left for Belgrade. He and Hunyadi traveled together, but commanded separately. Between the two of them, they had roughly 40,000 to 50,000 men.
The outnumbered defenders relied mainly on the strength of the formidable castle of Belgrade which was at the time one of the best engineered in the Balkans. As Belgrade was designated to be the capital of the Serbian principality by Despot Stephan Lazarevic in 1404 after the battle of Angora, major work was done to transform the small old Byzantine castle to a strong enforced capital. As Ottoman raids were expected after they recovered from the heavy loss against the Mongols, advanced building techniques from Byzantine and Arab fortress designs were used, learned during the period of conflict that loomed from the middle of the eleventh century with Seljuk and Ottoman military operations transforming the near east.
The castle was designed in the most elaborate form as three lines of defense, inner castle with the palace and huge Donjon, the upper town with the main military camps with four gates and a double wall and the lower town with the cathedral in the urban center and a port at the Danube, were skillfully separated by trenches, gates and high walls. The endeavor was one of the most elaborated military architecture achievements of the Middle Ages. After the Siege the Hungarians enforced the north and eastern side with an additional gate and several towers, one of which, the Nebojsa tower, was designed for artillery purposes.
On July 14, 1456, Hunyadi arrived the completely encircled city with his flotilla on the Danube while the Turkish navy lay astride the Danube River. He broke the naval blockade on July 14, sinking three large Ottoman galleys and capturing four large vessels and 20 smaller ones. By destroying the Sultan's fleet Hunyadi could transport his troops and much-needed food into the city. The fort's defense was also reinforced.
But Mehmet II was not willing to end the siege and after a week of heavy artillery bombardment, the walls of the fortress were breached in several places. On July 21 Mehmet II ordered an all-out assault which began at sundown and continued all night. The besieging army flooded the city, and then started its assault on the fort. As this was the most crucial moment of the siege, Hunyadi ordered the defenders to throw tarred wood, and other flammable material, and then set it afire. Soon a wall of flames separated the Janissaries fighting in the city from their comrades trying to breach through the gaps into the upper town. The fierce battle between the encircled Janissaries and Szilágyi's soldiers inside the upper town was turning in favor of the Christians and the Hungarians managed to beat off the fierce assault from outside the walls. The Janissaries remaining inside the city were thus massacred while the Turkish troops trying to breach into the upper town suffered heavy losses. When a Turkish soldier almost managed to pin the Sultan's flag on top of a bastion, a soldier named Titus Dugović (Dugovics Titusz in Hungarian) grabbed him and together they plunged from the wall. (For this heroism John Hunyadi's son, the Hungarian king Matthias Corvinus made Titus's son a nobleman three years later.)
Battle
The next day something unexpected happened. By some accounts, the peasant crusaders started a spontaneous action, and forced Capistrano and Hunyadi to make use of the situation. Despite Hunyadi's orders to the defenders not to try to loot the Turkish positions, some of the units crept out from demolished ramparts, took up positions across from the Turkish line, and began harassing enemy soldiers. Turkish spahis (provincial cavalry) tried without success to disperse the harassing force. At once more Christians joined those outside the wall. What began as an isolated incident quickly escalated into a full-scale battle.
John of Capistrano at first tried to order his men back inside the walls, but soon found himself surrounded by about 2,000 Crusaders. He then began leading them toward the Ottoman lines, crying, "The Lord who made the beginning will take care of the finish!"
Capistrano led his crusaders to the Turkish rear army across the Sava river. At the same time, Hunyadi started a desperate charge out of the fort to take the cannon positions in the Turkish camp.
Taken by surprise at this strange turn of events and, as some chroniclers say, paralyzed by some inexplicable fear, the Turks took flight. The Sultan's bodyguard of about 5,000 Janissaries tried desperately to stop the panic and recapture the camp, but by that time Hunyadi's army had also joined the unplanned battle, and the Turkish efforts became hopeless. The Sultan himself advanced into the fight and killed a knight in single combat, but then took an arrow in the thigh and was rendered unconscious. After the battle, the Hungarian raiders were ordered to spend the night behind the walls of the fortress and to be on the alert for a possible renewal of the battle, but the Turkish counterattack never came.
Under cover of darkness the Turks retreated in haste, bearing their wounded in 140 wagons. At the city of Sarona, the sultan regained consciousness. Upon learning that his army had been routed, most of his leaders killed and all his equipment abandoned, the 24-year-old ruler was barely prevented from committing suicide by taking poison. The surprise attacks caused heavy losses and much disarray. Thus, during the night a defeated Mehmed withdrew his remaining forces and returned to Constantinople.
Aftermath
The Hungarians had, however, to pay dearly for this victory, as plague broke out in the camp, in which John Hunyadi himself died three weeks later.
As the design of the fortress had showed well during the siege, some additional enforcements were made by the Hungarians. The weaker eastern walls, where the Ottomans breached through into the upper town were reinforced by the Zindan gate and the Heavy Nebojsa tower. This was the last of the great modifications to the fortress until 1521 when Sultan Süleyman eventually captured it.
Follow Up
The victory stopped the Ottoman Turkish advance towards Catholic Europe for 70 years, though they made other incursions such as the taking of Otranto in 1480-1481 and the raid of Croatia and Styria in 1493. Belgrade would continue to protect Hungary from Turkish attacks until the fort fell to the Ottomans in 1521.
After the Siege of Belgrade stopped the advance of Mehmed II towards Central Europe, Serbia and Bosnia were absorbed into the Empire. Wallachia, the Tartar Khanate of Crimea, and eventually Moldavia were merely converted into vassal states thanks to strong military resistance to Mehmed's attempts at conquest. There were several reasons why the sultan did not directly attack Hungary and why he gave up the idea of advancing in that direction after his unsuccessful siege of Belgrade. The mishap at Belgrade indicated that the Empire could not expand further until Serbia and Bosnia were transformed into a secure base of operations. Furthermore, the significant political and military power of Hungary under Matthias Corvinus no doubt had something to do with this hesitation. Mehmed was also distracted by resistance from two semi-independent vassals to the north of the Danube, over whom he was attempting to exercise greater authority.
While Hunyadi's victory at Belgrade and the lasting legacy of his political decisions (Vlad III the Impaler and Stephen III both came to power under Hunyadi, and he went to great lengths to have his son Matthias placed on the throne) rendered the daunting Mehmed II far less of a threat to Christendom, his ultimate dream of a Christian reconquest of Constantinople would never be realized. Hunyadi had chosen to stay out of the Siege of Constantinople because he was militarily unprepared to fight Mehmed's mighty army at the time, and instead opted to protect Hungary and fortify the Balkans. Matthias did not share the concept of a great war against the Turks and was too embroiled in political disputes with the Holy Roman Empire to his West to be the aggressive warrior his father was, so his role was limited mostly to defending his own territory and letting the Balkan leaders bare the brunt of the struggle against the Ottoman Turks.
While fierce resistance and Hunyadi's effective leadership ensured that the daring and ambitious Mehmed the Conqueror would only get as far into Europe as the Balkans, the sultan had already managed to transform the Ottoman Empire into what would be one of the most feared powers in Europe (as well as Asia) for centuries. Most of Hungary was eventually conquered in 1526 at the Battle of Mohacs. Ottoman expansion into Europe continued with menacing success until the Siege of Vienna in 1529, and Ottoman power in Europe remained strong and still threatening to Central Europe at times until the Battle of Vienna in 1683.
ReferencesISBN links support NWE through referral fees
- Brand, Hannah, Henry Willis Wells, and John Larpent. Huniades: [or, The siege of Belgrade], 1791. New York, 1954. OCLC: 29106363
- Hebron, Malcolm. The medieval siege: theme and image in Middle English romance. Oxford English monographs. Oxford [England]: Clarendon Press, 1997. ISBN 9780198186205
- Storace, Stephen, and James Cobb. The siege of Belgrade. Cambridge [England]: Chadwyck-Healey, 1996.
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