The Serbian monarchy: Peter I Karadjordjevic
Peter I Karadjordjevic (Serb. Petar I Karaori; June 29, 1844, Belgrade, August 16, 1921, Belgrade) – the first Serbian king from the dynasty of Royal (1903); in 1918 became the first king of the Serbs, Croats and Slovenes.
The fifth son of Prince Alexander and Princess Persida of the famous Serbian kind of Nanodevices. Married Sorce, daughter of the Montenegrin Prince (later king) and poet Nikola I petrovic njegos. Thus, he became tsars dynasties of Russia and Italy. Daughter of Peter, Elena Serbian, and in 1911 became the wife of the Russian Prince of the blood Imperial, John Konstantinovich.