Stephen Báthory
John Sigismund's successor, Stephen Báthory, however, adopted the title the one-time royal governors of Transylvania used and styled himself "voivode". Furthermore, he secretly swore allegiance to King Maximilian I of Hungary. Stephen Báthory only adopted the style "Prince" when he was elected King of Poland in 1576. Upon his death in 1586, his princely title was inherited by his nephew, Sigismund Báthory. The new style of the rulers of Transylvania and the Partium was also confirmed by King Maximilian I's successor, Emperor Rudolph II on January 28, 1595.