Vlado Chernozemski (Bulgarian: Владо Черноземски; born Velichko Dimitrov Kerin, ; 19 October 1897 – 9 October 1934), was a Bulgarian revolutionary. Also known as "Vlado the Chauffeur", Chernozemski is considered a hero in Bulgaria today, and in his time, in Croat dissident circles and in the Macedonian Bulgarian diaspora. The official historiography in North Macedonia regards him as a controversial Bulgarian. Chernozemski began his revolutionary activities in 1922, when he joined the Internal Macedonian Revolutionary Organization (IMRO). Soon after, he became an assassin for the IMRO. He killed two notable Bulgarian politicians, communist Dimo Hadzhidimov, and IMRO member Naum Tomalevski. Both times he was sentenced to death, but he escaped from his first imprisonment and was released from the second. After his release in 1932, he became an instructor for the Ustaše. He trained a group of three Ustaše to assassinate Alexander of Yugoslavia, but eventually killed Alexander himself on 9 October 1934 in Marseille. He was then beaten by French police and spectators, and died the same day. French Foreign Minister Louis Barthou was also killed by a stray bullet fired by French police during the scuffle following the attack. For murdering King Alexander I, Chernozemski was posthumously declared the most dangerous terrorist in Europe. Early life Velichko Dimitrov Kerin was born in the village of Kamenitsa, then in the Principality of Bulgaria, now a quarter of the town of Velingrad. His father, Dimitar Kerin, and his mother, Risa Baltadzieva, were both local peasants. He received primary education in his native village. His mother died when he was 14 years old and the young Kerin was induced to help his father feed the family along with his younger brother and two sisters. Chernozemski joined the military in Plovdiv. During World War I, he served in the engineer corps. After the war he worked as a driver and watchmaker. As a youngster, he was prone to drinking alcohol, but later reformed and became a vegetarian. He married in 1919. In 1923, his daughter Latinka was born. In 1925, he divorced and remarried. He lived in Sofia until 1932. According to a conspiracy theory promoted by himself, he was born in a village called Patrick near Štip, that was burned down by the Serbian army during the Second Balkan War, and was never restored. His mother and father were therefore living in Bulgaria as refugees. He used different aliases and pseudonyms