Emeric Thököly de Késmárk was a Hungarian nobleman, leader of anti-Habsburg uprisings like his father, Count István Thököly, before him. Emeric was Prince of Upper Hungary, an Ottoman vassal state, from 1682 to 1685, and briefly Prince of Transylvania during the year 1690. Having formed an alliance with the Turks, Thököly assisted the Ottoman Empire at the Battle of Vienna in 1683 and led the Turkish cavalry at the Battle of Zenta. Refusing to surrender to Habsburg Emperor Leopold I, Thököly lost his principality of Upper Hungary and finally retired to Galata, near Constantinople, with large estates granted him by Mustafa II.

The Battle of Vienna took place at Kahlenberg Mountain near Vienna on 12 September 1683 after the city had been besieged by the Ottoman Empire for two months. The battle was fought by the Holy Roman Empire and the Polish–Lithuanian Commonwealth, both under the command of King John III Sobieski, against the Ottomans and their vassal and tributary states. The battle marked the first time the Commonwealth and the Holy Roman Empire had cooperated militarily against the Ottomans. The defeat is often seen as a turning point for Ottoman expansion into Europe, after which they would gain no further ground. In the ensuing war that lasted until 1699, the Ottomans would cede most of Ottoman Hungary to Leopold I, Holy Roman Emperor.