 Smederevo Fortress, 45 kilometers southeast of Belgrade, covers 11.3 hectares in the center of the modern-day city of Smederevo.It is strategically located on the right bank of the Danube river on the triangular plain formed by the confluence of the Danube and Jezava rivers, only 72 meters above sea level.This location allowed the Serbian capital to remain near the Christian Kingdom of Hungary, while also satisfying Sultan Murad II of the Ottoman Empire by eliminating the uncontrolled passage of the Hungarians into the Morava Valley.