In the third wave of the great wars against the Turks in the sixteenth century, Kőszeg became the major flashpoint of the campaign of 1532. Between August 5–30, Grand Vizier Ibrahim led 19 major assaults against the town. Under the leadership of the town and fort of Croatian captain Nikola Jurišić, a small garrison of only 700–800 Hungarian, Croat and German soldiers repelled an Ottoman force numbering over 100,000 soldiers in the Siege of Kőszeg. After the final unsuccessful attack, the Turkish leadership were forced to decamp due to an uprising by the Janissaries. According to tradition, the last contingent of withdrawing troops were meant to have left the city limits around 11 o'clock. As a memorial to this historic heroism, the church clocks in the town have read 11 o'clock since 1777.