The siege of Belgrade was a successful attempt by Austrian troops under the command of Prince Eugene of Savoy to capture the strategically important city of Belgrade from the Ottoman Empire. It took place during the Austro-Turkish War (1716–1718), barely a year after the Austrian victory at the Battle of Petrovaradin (Peterwardein). The Imperial Army routed the Ottoman relief army under Grand Vizier Hacı Halil Pasha on 16 August. As a consequence, the Belgrade garrison, deprived of relief, surrendered to the Austrians on 21 August. 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 and the city of Belgrade into Austrian hands.

Maurice, Count of Saxony was a notable soldier, officer and a famed military commander of the 18th century. The illegitimate son of Augustus II the Strong, King of Poland and Elector of Saxony, he initially served in the Army of the Holy Roman Empire, then the Imperial Army, before finally entering French service. De Saxe became a Marshal and even Marshal General of France. He is best known for his deeds in the War of the Austrian Succession and especially for his decisive victory at the Battle of Fontenoy.