The Ottoman Sultan Ahmed III sued for peace, resulting in the Treaty of Passarowitz a year later, which completed the transfer of the remainder of Hungary, the Banat of Temeswar with lower Syrmia, and the city of Belgrade with central Serbia into Habsburg hands.

Its walls could resist both attacks from the south-east and those from the north-west, and this made it a key to the Balkans for the Habsburgs and Central Europe for the Ottoman Empire.

These were reinforced by 5,700 Bavarians, Austrian troops stationed in the Banat, and volunteers from half the royal houses of Europe, including a company of Frenchmen led by the grandson of the late Louis XIV (both Count of Charolais and Prince of Dombes took part in the siege), for a total of about 100,000 men.

In addition, Eugene commanded the Danube flotilla, consisting of about fifty boats of various types and ten naval vessels armed with light artillery.

Count von Hauben was sent to establish a bridgehead west of the Sava in order to have a supply and communication route to Petrovaradin and a liaison to Zemun troops.

Prince Eugene was informed that the huge Ottoman army of about 140,000 men sent to relieve Belgrade was approaching under the command of Grand Vizier (Hacı) Halil Pasha.

When the force of 40,000 Crimean Tatars arrived on 12 August, Halil Pasha, still reluctant to fight Eugene's army, chose to gather another war council instead of attacking.

[5] The attack started as scheduled before midnight of 15 August, a heavy fog arose covered the battlefield, according to Lieutenant General of Infantry Maffei the fog was so thick it quickly became impossible to distinguish between friend and enemy;[21] Württemberg advanced the Imperial center with Count Pálffy's cavalry on left and right; the night attack surprised the Ottomans and they woke in panic and confusion; however several Ottoman infantry battalions managed to corner the right side of Pálffy's cavalry after it lost its way in the fog this already disrupting the order of war; the Ottoman infantry opened fire with support from their left Sipahi cavalry.

General Count Claude Florimond de Mercy with the second cavalry line attacked immediately in support of Pálffy, followed by the infantry of Maximilian Adam Graf Starhemberg, the thrust succeeded in pushing the Ottomans back all the way to their trenches.

Prince Eugene understood that he could turn the situation to his advantage since he could anticipate now the Ottoman battle plan; he ordered von Braunschweig-Bevern's second infantry line to counterattack placing the Bavarian troops in the front.

Eugene's attack decision completely changed the situation, not only pushed the enemy back but also took the trenches, throwing the Ottoman camp into turmoil and causing many soldiers to flee.

[22] The Ottoman 18-gun battery on the Badjina Heights was captured and the remaining troops withdraw to the camp where the Grand Vizier ordered a full retreat.

James Oglethorpe, an aide de camp of the prince, reported that Eugene had a Te Deum performed in the tent of the Grand Vizier on 19 August after taking possession of it.

[6] Austria obtained at the expense of the Ottoman Empire the Banat of Temesvár which returned to the kingdom of Hungary, Belgrade, northern Serbia, Lesser Wallachia (Oltenia), and other neighboring areas.