Alexander I Karađorđević, King (Kingdom of Yugoslavia) : All Data
Alexander I Karađorđević was the King of Yugoslavia from 1921 until his assassination in 1934. During his reign, he faced several significant conflicts, including the Yugoslav Wars of Unification (1918-1922), which aimed to unite the various regions of Yugoslavia into a single state. These wars resulted in the establishment of the Kingdom of Serbs, Croats, and Slovenes in 1918, later renamed the Kingdom of Yugoslavia in 1929.