The diploma thesis was written on the topic of the Croatian historical great - Nikola Šubić Zrinski. He distinguished himself as a great military leader, and was remembered for his courage. Nikola Šubić Zrinski was born in Zrin, after whom the noble family Šubići got the name Zrinski. The Šubić nobles came from Bribir near Skradin to Zrin in the 14th century. During his life, Nikola Šubić Zrinski fought with the Ottoman Empire. Due to his significant contribution to the defense against the Ottomans, King Ferdinand I named him ban of Croatia-Slavonia-Dalmatia. Due to a combination of circumstances, the noble Zrinski family moved from Zrin to Međimurje. With numerous victories over the Ottoman army, Nikola Šubić Zrinski ended his life defending the fortress of Siget in 1566. He gained world fame with his heroic death. Numerous literary, musical and artistic works were created in his honor. Nikola Šubić Zrinski remained a symbol of the Croatian nation, identity, resistance, struggle, courage, patriotism and desire for freedom.