Early in March the Turks opened the campaign by sending an army of twenty thousand men to besiege Orsova, an important fortress on an island of the Danube, about one hundred miles below Belgrade. They planted their batteries upon both the northern and the southern banks of the Danube, and opened a storm of shot and shell upon the fortress. The Duke of Lorraine hastened to the relief of the important post, which quite commanded that portion of the stream. The imperial troops pressed on until they arrived within a few miles of the fortress. The Turks marched to meet them, and plunged into their camp with great fierceness. After a short but desperate conflict, the Turks were repulsed, and retreating in a panic, they broke up their camp before the walls of Orsova and retired.
This slight success, after so many disasters, caused immense exultation. The Duke of Lorraine was lauded as one of the greatest generals of the age. The pulpits rang with his praises, and it was announced that now, that the troops were placed under a true child of the Church, Providence might be expected to smile. Soon, however, the imperial army, while incautiously passing through a defile, was assailed by a strong force of the Turks, and compelled to retreat, having lost three thousand men. The Turks resumed the siege of Orsova; and the Duke of Lorraine, quite disheartened, returned to Vienna, leaving the command of the army to Konigsegg. The Turks soon captured the fortress, and then, ascending the river, drove the imperial troops before them to Belgrade. The Turks invested the city, and the beleaguered troops were rapidly swept away by famine and pestilence. The imperial cavalry, crossing the Save, rapidly continued their retreat. Konigsegg was now recalled in disgrace, as incapable of conducting the war, and the command was given to General Kevenhuller. He was equally unsuccessful in resisting the foe; and, after a series of indecisive battles, the storms of November drove both parties to winter quarters, and another campaign was finished. The Russians had also fought some fierce battles; but their campaign was as ineffective as that of the Austrians.
The court of Vienna was now in a state of utter confusion. There was no leading mind to assume any authority, and there was irremediable discordance of counsel. The Duke of Lorraine was in hopeless disgrace; even the emperor assenting to the universal cry against him. In a state almost of distraction the emperor exclaimed, "Is the fortune of my empire departed with Eugene?" The disgraceful retreat to Belgrade seemed to haunt him day and night; and he repeated again and again to himself, as he paced the floor of his apartment, "that unfortunate, that fatal retreat." Disasters had been so rapidly accumulating upon him, that he feared for every thing. He expressed the greatest anxiety lest his daughter, Maria Theresa, who was to succeed him upon the throne, might be intercepted, in the case of his sudden death, from returning to Austria, and excluded from the throne. The emperor was in a state of mind nearly bordering upon insanity.
At length the sun of another spring returned, the spring of 1739, and the recruited armies were prepared again to take the field. The emperor placed a new commander, Marshal Wallis, in command of the Austrian troops. He was a man of ability, but overbearing and morose, being described by a contemporary as one who hated everybody, and who was hated by everybody in return. Fifty miles north of Belgrade, on the south bank of the Danube, is the fortified town of Peterwardein, so called as the rendezvous where Peter the Hermit marshaled the soldiers of the first crusade. This fortress had long been esteemed one of the strongest of the Austrian empire. It was appointed as the rendezvous of the imperial troops, and all the energies of the now exhausted empire were expended in gathering there as large a force as possible. But, notwithstanding the utmost efforts, in May but thirty thousand men were assembled, and these but very poorly provided with the costly necessaries of war. Another auxiliary force of ten thousand men was collected at Temeswar, a strong fortress twenty-five miles north of Peterwardein. With these forces Wallis was making preparations to attempt to recover Orsova from the Turks, when he received positive orders to engage the enemy with his whole force on the first opportunity.
The army marched down the banks of the river, conveying its baggage and heavy artillery in a flotilla to Belgrade, where it arrived on the 11th of June. Here they were informed that the Turkish army was about twenty miles below on the river at Crotzka. The imperial army was immediately pressed forward, in accordance with the emperor's orders, to attack the foe. The Turks were strongly posted, and far exceeded the Austrians in number. At five o'clock on the morning of the 21st of July the battle commenced, and blazed fiercely through all the hours of the day until the sun went down. Seven thousand Austrians were then dead upon the plain. The Turks were preparing to renew the conflict in the morning, when Wallis ordered a retreat, which was securely effected during the darkness of the night. On the ensuing day the Turks pursued them to the walls of Belgrade, and, driving them across the river, opened the fire of their batteries upon the city. The Turks commenced the siege in form, and were so powerful, that Wallis could do nothing to retard their operations. A breach was ere long made in one of the bastions; an assault was hourly expected which the garrison was in no condition to repel. Wallis sent word to the emperor that the surrender of Belgrade was inevitable; that it was necessary immediately to retreat to Peterwardein, and that the Turks, flushed with victory, might soon be at the gates of Vienna.
Great was the consternation which pervaded the court and the capital upon the reception of these tidings. The ministers all began to criminate each other. The general voice clamored for peace upon almost any terms. The emperor alone remained firm. He dispatched another officer, General Schmettan, to hasten with all expedition to the imperial camp, and prevent, if possible, the impending disaster. He earnestly pressed the hand of the general as he took his leave, and said—
"Use the utmost diligence to arrive before the retreat of the army; assume the defense of Belgrade, and save it, if not too late, from falling into the hands of the enemy."
The energy of Schmettan arrested the retreat of Wallis, and revived the desponding hopes of the garrison of Belgrade. Bastion after bastion was recovered. The Turks were driven back from the advance posts they had occupied. A new spirit animated the whole Austrian army, and from the depths of despair they were rising to sanguine hopes of victory, when the stunning news arrived that the emperor had sent an envoy to the Turkish camp, and had obtained peace by the surrender of Belgrade. Count Neuperg having received full powers from the emperor to treat, very imprudently entered the camp of the barbaric Turk, without requiring any hostages for his safety. The barbarians, regardless of the flag of truce, and of all the rules of civilized warfare, arrested Count Neuperg, and put him under guard. He was then conducted into the presence of the grand vizier, who was arrayed in state, surrounded by his bashaws. The grand vizier haughtily demanded the terms Neuperg was authorized to offer.
"The emperor, my master," said Neuperg, "has intrusted me with full powers to negotiate a peace, and is willing, for the sake of peace, to cede the province of Wallachia to Turkey provided the fortress of Orsova be dismantled."
The grand vizier rose, came forward, and deliberately spit in the face of the Count Neuperg, and exclaimed,