During World War I, Kragujevac again became the capital of Serbia (1914–1915), and the seat of many state institutions—the Supreme Army Command was housed within the court house building.
Durante a Primeira Guerra Mundial, Kragujevac volveu ser a capital de Serbia entre 1914 e 1915, e a sede de moitas institucións estatais, incluso o mando supremo do exército serbio foi situado no edificio do Palacio de Xustiza.