After the battle before Belgrade and the capture of that fortress, the Austrians advanced and occupied a great part of Serbia and Western Wallachia. They appealed to the Serbian people to rise against their Ottoman masters, but not more than twelve hundred answered the appeal and joined the Austrian army. There was no desire on the part of the Serbians to exchange Turkish for Austrian rule. The occupation by the Austrians of territory south of the Danube proved to be temporary. Twenty-two years later the Ottomans recaptured Belgrade and drove the Austrians from Serbia.

Meanwhile the Grand Vizier Khalil was dismissed from office by the Sultan for the incapacity which he had shown in the campaign and in the battle of Belgrade. After a time he was succeeded by Damad Ibrahim, a son-in-law and lifelong favourite of the Sultan, who held the post for twelve years, till the deposition of Achmet in 1730. He proved himself in every way worthy of his high office. There was a desire in many quarters to embark on another campaign for the recovery of Hungary. But in the winter of 1717-18 the British Ambassador again proposed mediation, on behalf of England and Holland, on the principle of Uti possidetis. This was accepted by both Austria and the Porte. The Emperor was willing to content himself with what he had already achieved, the more so as there was danger of war in other directions. There was more difficulty on the part of the Ottomans. But the Sultan and the Grand Vizier ultimately gave their decision in favour of peace.

The precedent of the Congress of Carlowitz was closely followed. A congress was held at Passarowitch, a small town in Serbia. England and Holland again acted as mediators. After long discussion, agreement was arrived at, and was embodied in a treaty known as that of Passarowitch, on July 21, 1718. By its terms the whole of what remained of Hungary to the Ottoman Empire after the treaty of Carlowitz, a large part of Wallachia, bounded by the River Aluta, and the greater part of Serbia, and a portion of Bosnia bounded by the Rivers Morava, Drina, and Unna, together with the fortresses of Belgrade and Semendria, were ceded to the Emperor.

The Republic of Venice, on whose behalf Austria had embarked on the war, fared badly by the treaty. It had to give up to Ottoman rule the whole of the Morea which had been reconquered by Damad, but received some concessions in Dalmatia. It was, however, arranged by the Congress that the Porte should have an access to the Adriatic, so as to protect the Republic of Ragusa from Venice. There remained to Venice of its possessions in this quarter only the island of Corfu, the other Ionian islands, and a few ports on the Albanian and Dalmatian coasts. The Porte engaged by the treaty to put a stop to the piracy of Algiers, Tunis, Tripoli, and Ragusa, and to prohibit the residence of the Hungarian rebels in the vicinity of the new Austrian frontier.

The treaty of Passarowitch, following on the great defeats of the Ottomans at the battles of Peterwardein and Belgrade, was almost as important as that of Carlowitz. It determined finally the release of the whole of Hungary from the Ottomans. Their rule there had never been more than a military occupation. There was no real incorporation of the country in the Ottoman Empire. There had been no attempt to settle Turks there, or to impose the Moslem religion on its population. After the expulsion of the garrisons from the various fortresses, all vestiges of the Ottomans disappeared, and no trace of them remained as evidence that they had ever been masters there.[29] It was a great achievement of the Austrians, for which Prince Eugène was mainly responsible. It should be added, however, that there does not appear to have been any popular rising of the people of Hungary, whether Magyars or Sclavs, either in these last two years of war or in the previous war of 1698-9, against their Ottoman rulers. It has been shown that the earlier war had its commencement in an insurrection against the Austrians in that part of Hungary subject to their rule. The Turks hoped to take advantage of this. They appear to have been in close relation with these insurgents throughout these two wars. The Austrians defeated the Turks and drove them out of the country, but their bigoted tyranny was not more acceptable to the inhabitants than that of the Turks. Many years were to elapse before the Magyars of Hungary secured for themselves the benefits of self-government.

The war with Austria, which resulted in the treaty of Passarowitch, did something more than free Hungary from Ottoman rule. It completed the destruction of the prestige of the Turkish armies which had so long weighed on the mind of Europe. The great battles of Peterwardein and Belgrade, in which the Turks were defeated by Austrian armies of very inferior numbers, following as they did a long succession of similar defeats from the battle of St. Gotthard downwards, showed conclusively that the Ottoman armies were no match for the well-disciplined forces of Austria when led by competent generals. The Ottomans seem to have been completely cowed by the succession of defeats. Thenceforth they were always on the defensive in Europe, and never willingly acted the part of aggressors. It became the settled conviction of Europe not only that there was no longer any reason to fear invasion from the Turks, but that it was only a question of time when they would be driven back into Asia.

XV
TO THE TREATY OF BELGRADE
1718-39

The remainder of Sultan Achmet’s reign, till his deposition in 1730, was a period of uninterrupted peace, so far as Europe was concerned. Damad Ibrahim retained his post as Grand Vizier for twelve years, during which he had the absolute confidence of the Sultan and practically ruled the Empire. His policy was distinctly favourable to peace. The only disturbance to it was on the frontier of Persia. That kingdom was in a state of commotion. Its feeble and incompetent ruler, Shah Hussein, was subverted by an Afghan adventurer, Mahmoud. Hussein’s son, Tahmasp, appealed to the Czar of Russia and to the Sultan of Turkey for aid to recover his kingdom. Peter the Great offered his support in return for the cession of provinces in the Caspian and Black Sea, and sent an army to take possession of them. This greatly alarmed the Porte, and it threatened war with Russia. Eventually, however, war was avoided. An agreement was arrived at, in 1723, between the two Powers for the partition between them of the greater part of North Persia. The Porte was to have as its share the provinces of Georgia, Erivan, Tabriz, and Baku. Russia was to have Schirvan and the other provinces already promised to it by Tahmasp. Russia was practically already in possession of its share. The Porte had to send an army to conquer the provinces which were to be its portion. It met with some opposition, but the cities of Erivan and Tabriz were captured. This brought the Porte into conflict with Tahmasp, but eventually an agreement was arrived at. Tahmasp was thrown over, and Mahmoud recognized the sovereignty of the Porte over the provinces referred to. It is not worth while entering further into details of these transactions, for it will be seen that in a few years Persia, under Nadir Khan, acting on behalf of Tahmasp, recovered these provinces.