Telli Hasan Pasha Telli Hasan Pasha , or Hasan Predojević , known formally as Gazi Hasan - paša Predojević ( ca . 1530 - 22 June 1593 ) , was the fifth Ottoman beylerbey of Bosnia and a notable Ottoman military commander , who led an invasion of the Habsburg Kingdom of Croatia during the Ottoman wars in Europe . Life . Early life . He was born Nikola Predojević to an Orthodox Vlach family of shepherds , from the village of Klobuk near Trebinje in the Herzegovina region and was thus called " Klobučarić " . An Ottoman sultan wrote in a book that he had requested from a notable lord in Herzegovina , named Predojević , that 30 little Serbian children ( including Predojević ' s only son Jovan , and his nephew Nikola ) to be sent to Ottoman service ( see devshirme ) . After his conversion to Islam he was given the name Hasan . Ottoman service . During the rule of Murat III ( 1574 – 1595 ) he became Sanjak - bey of the Sanjak of Segedin , where he stayed until June 1591 , when he was appointed Beylerbey ( Governor - General ) of Bosnia . Invasion of Croatia . In 1591 and just after being appointed Beylerbey , Hasan , a bellicose and dynamic military leader , strengthened the army of the Eyalet equipping it with better horses and erecting a bridge at Gradiška with the purpose of more easily maneuver between Bosnia and Slavonia . After that , he launched a savage raid into the Kingdom of Croatia burning almost a hundred villages , taking some 35 . 000 captives and so much booty , and capturing a number of major Habsburg forts . However , he was unsuccessful in his attempts to occupy Sisak three times between that year and 1593 . In 1592 , during the reign of Ottoman Sultan Murad III , a force of approximately twenty - thousand janissaries invaded Croatia , which was then under the rule of the House of Habsburg , despite the fact that the two realms had signed a nine - year peace treaty in 1590 . Led by the beylerbey of Bosnia , Telli Hasan Pasha , the army ' s goal was to seize the strategically important town of Senj and its port and to eliminate the Uskoci , Croatian soldiers in the service of the Habsburgs and pirates , who had engaged in guerrilla warfare against the Ottomans . In 1592 his provincial army of about 20 . 000 , attacked and forcefully occupied the fortified town of Bihać . Records show that nearly 2 . 000 people died in defense of the town , and an estimated 800 children were taken for Ottoman servitude ( see devshirme ) , to be educated in Islam and become janissaries , as Hasan himself . At first , Telli Hasan Pasha met little resistance , allowing him to capture numerous Uskoci settlements , where they enslaved or slaughtered the entire population and burned the settlements . His forces soon besieged and captured Senj and exterminated the Uskoci population . As the Bosnian Ottoman regional invading force was advancing throughout the Croatian Frontier , Hasan settled a lot of Orthodox Vlach population , from which many men served in his army , as well some Turkish and Bosniak nobility , in the newly conquered territories . For his successes , the Pasha was awarded the title of " Vizier " by the Sultan . However , the following year , Telli Hasan Pasha decided to advance further into Croatia . His force of some twenty - thousand was soundly defeated in the Battle of Sisak and ultimately dispersed in a rout . " " The brave Hasan Pasha himself also met with his fate , having fallen into the river with one of the bridges which had been cut to prevent the pursuit of the enemy . Such was the result of this terrible day . " " Hasan Pasha is generally reported to have died in the battle , as did his brother Džafer Bey , Mehmed Pasha , the sultan ’ s own nephew and governor of the Sanjak of Herzegovina , Opardi Bey , governor of the Sanjak of Klis - Livno , Zefar Bey , governor of the Sanjak of Zvornik , and many other Turkish and Bosniak Pasha s , Bey s and Aga s , who accompanied the Vizier in his campaign . Indeed , after he had drowned in the river , his dress was taken as a trophy to Ljubljana where it was remade into the sacerdotal coat worn by the bishop during the celebration of the Thanksgiving mass . Aftermath and legacy . A monastery was built on the location of his grave , after requests of a Predojević to Sultan Murad , who also granted Kolunić and Smiljan ( " metochion " ) . Name . Telli ( or Deli ) Hasan Paşa , or Hasan Predojević , known formally as Gazi Hasan - paša Predojević .