Petar Kružić

Petar Kružić (cca. 1490 – 12 March 1537) was a Croatian captain and knez of Klis, captain of Senj, and knez of Lupoglav.

In the early 16th century, Kružić defended the Fortress of Klis against Ottoman invasion. He died in 1537 trying to break yet another siege by the Ottomans. After his death, the Klis defenders moved to Senj, continuing to act as Uskoks. In this way, the Ottomans finally conquered the Klis Fortress after almost two and a half decades of its successful defense.

Origin His birth date is unknown, usually considered to have been born around 1490.

Military career His early activity is unknown. For some time he was in captivity in Bosnia.

By 1520 he was promoted to captain of the Klis Fortress. In his memory are named schools, streets, and squares in Croatia.