 When the Turks invaded Transylvania, he died at the battle of Gyalu (Gilău) (May 1660).Francis Rákóczi I (February 24, 1645, Gyulafehérvár, Transylvania – July 8, 1676, Zboró, Royal Hungary) was the elected prince of Transylvania and Hungarian aristocrat.He was the son of George II Rákóczi, who was the prince of Transylvania, though George transferred his power to his son in 1652 through the Transylvanian Diet.