The Battle of Sződfalva or Battle of Sedfal field (Hungarian: Sződfalvi csata, Serbian: Бој на Седфалском пољу (Boj na Sedfalskom polju)) was fought on 25 July 1527 between voivodian Serbs, under Jovan Nenad, and the Transylvanian army of (Hungarians and Saxons). In the battle, Jovan Nenad was defeated by a much larger force, and many of his troops dispersed into Syrmia after the defeat. When Ferdinand of Austria won, the Serbs maintained an autonomous principality in the area that lasted until 1540.