The Ottoman Turks capture Nándorfehérvár (Belgrade).

The Ottoman Turks were a Turkic ethnic group in Anatolia. Originally from Central Asia, they migrated to Anatolia in the 13th century and founded the Ottoman Empire, in which they remained socio-politically dominant for the entirety of the six centuries that it existed. Their descendants are the present-day Turkish people, who comprise the majority of the population in the Republic of Turkey, which was established shortly after the end of World War I.

Belgrade is the capital and largest city of Serbia. It is located at the confluence of the Sava and Danube rivers and at the crossroads of the Pannonian Plain and the Balkan Peninsula. According to the 2022 census, the population of Belgrade city proper stands at 1,197,114, its contiguous urban area has 1,298,661 inhabitants, while population of city's administrative area totals 1,681,405 people. It is one of the major cities of Southeast Europe and the third-most populous city on the river Danube.