The Battle of Segesvár (Transylvania, now Sighişoara, Romania) was a battle in the Hungarian Revolution of 1848, fought on 31 July 1849 between the Hungarian revolutionary army supplemented by Polish volunteers under the command of General Józef Bem and the Russian V Corps under General Alexander von Lüders in ally with the Austrian army led by General Eduard Clam-Gallas. The battle was won by the Russian-Austrian army and it is presumed that the Hungarian poet and national hero Sándor Petőfi died in the battlefield, though his body was never found.