Stephen Bocskai

Stephen Bocskai or Bocskay (Hungarian: Bocskai István, Slovak: Štefan Bočkaj; 1 January 1557 – 29 December 1606) was Prince of Transylvania and Hungary from 1605 to 1606. He was born to a Hungarian noble family. His father's estates were located in the eastern regions of the medieval Kingdom of Hungary, which developed into the Principality of Transylvania in the 1570s. He spent his youth in the court of the Holy Roman Emperor, Maximilian, who was also the ruler of Royal Hungary (the western and northern regions of the medieval kingdom).

Bocskai's career started when his underage nephew, Sigismund Báthory, became the ruler of Transylvania in 1581. After the Diet of Transylvania declared Sigismund of age in 1588, Bocskai was one of the few members of Sigismund's council who supported his plan to join an anti-Ottoman coalition. Sigismund made Bocskai captain of Várad (now Oradea in Romania) in 1592. After the pro-Ottoman noblemen forced Sigismund to renounce his throne in 1594, Bocskai supported him in his bid to regain it, for which Sigismund rewarded him with estates confiscated from the leaders of the opposition. On Sigismund's behalf Bocskai signed a treaty concerning the membership of Transylvania in the Holy League in Prague on 28 January 1595. He led the Transylvanian army to Wallachia, which had been occupied by the Ottomans. The Christian troops liberated Wallachia and defeated the retreating Ottoman army in the Battle of Giurgiu on 29 September 1595.