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Alexander I. Leontiev (Александр Иванович Леонтьев)
Alexander Ivanovich Leontiev (Александр Иванович Леонтьев, 1927–2022) was a Russian thermophysics specialist and RAS academician who headed the Gas Turbines department at Bauman Moscow State Technical University.
Alexander II of Kakheti
Alexander II of Kakheti (ალექსანდრე II; 1527–1605) was king of Kakheti in eastern Georgia from 1574 to 1605, keeping the kingdom at peace and signing the first Georgian treaty with Russia in 1587.
Alexander II of Russia
Alexander II (1818–1881), Emperor of Russia 1855–1881, the Tsar-Liberator who freed the serfs in 1861, carried out the Great Reforms, sold Alaska in 1867, and was assassinated by Narodnaya Volya in 1881.
Alexander II of Scotland
Alexander II of Scotland (Alasdair mac Uilliam), king of Scots 1214-1249, son of William the Lion; supported Magna Carta barons, married Henry III's sister Joan, signed the Treaty of York 1237, and died campaigning for the Western Isles.
Alexander III of Russia
Alexander III of Russia, born Alexander Alexandrovich (Александр III, 1845–1894), was Emperor of All Russia from 1881 to 1894, remembered as the Peacemaker because Russia fought no wars under him.
Alexander III of Scotland
Alexander III of Scotland (1241–1286), reigned 1249–1286, last Canmore king; won the Western Isles and Man by the 1266 Treaty of Perth after Largs; died in a riding accident, leaving the Maid of Norway as heir.
Alexander Isak
Alexander Isak, Swedish striker born in Solna; AIK, Dortmund, Real Sociedad, then Newcastle's record signing (2022, 62 goals in 109 games, 2025 EFL Cup winner), sold to Liverpool September 2025 for a British record £125m.
Alexander Island
Alexander Island (Isla Alejandro I) is Antarctica's largest island, about 400 km long, off the Antarctic Peninsula's west coast, separated by George VI Sound, named for Tsar Alexander I, sighted 1821, with Mount Hall at 3078 m.
Alexander IV of Macedon
Alexander IV of Macedon (Ἀλέξανδρος Δʹ, 323–c. 310/309 BC), posthumous son of Alexander the Great and Roxane, nominal Argead king under regents Perdiccas, Polyperchon, and Cassander, murdered with his mother, ending the dynasty.
Alexander Ivanov
Alexander Ivanov (1806–1858) was a Russian painter best known for The Appearance of Christ to the People, one of the best-known works in Russian art.
Alexander Izvolsky
Alexander Petrovich Izvolsky (Александр Петрович Извольский) was a Russian diplomat who served as foreign minister from 1906 to 1910 and then as ambassador to France until 1917.
Alexander J. M. Miller
Alexander J. M. Miller is an organometallic chemist at the University of North Carolina at Chapel Hill who designs transition-metal catalysts for solar fuels and hydrogen production.
Alexander Jagiellon
Alexander Jagiellon (Polish: Aleksander Jagiellończyk, Lithuanian: Aleksandras Jogailaitis) was Grand Duke of Lithuania from 1492 and King of Poland from 1501 until his death in 1506.
Alexander Jannaeus's conquest of Gaza
Alexander Jannaeus's conquest of Gaza was the Hasmonean king's year-long siege and capture of the wealthy Arabian-trade port of Gaza around 96 BC, ending the city's independence.
Alexander Karađorđević, Prince of Serbia
Alexander Karađorđević (Александар Карађорђевић, 1806–1885), Prince of Serbia 1842–1858, youngest son of Karađorđe; elected after the 1842 deposition of Mihailo Obrenović, enacted the 1844 Civil Code and Načertanije, deposed in 1858, died in exile in Timișoara.
Alexander Karpinsky
Alexander Karpinsky (Александр Петрович Карпинский, 1846/1847–1936), Russian geologist, founder of the Russian geological school, first elected president of the Academy of Sciences 1917–1936, and director of the Geological Committee.
Alexander Katz
Alexander Katz is a professor of chemical and biomolecular engineering at UC Berkeley working in heterogeneous catalysis, known for molecularly imprinted silica and calixarene-controlled metal cluster catalysts.
Alexander Kazbegi
Alexander Kazbegi (ალექსანდრე ყაზბეგი; 1848–1893) was a Georgian prose writer and poet, a leading figure of Georgian critical realism known for stories about the mountaineers of Khevi.
Alexander Kazembek
Alexander Kazembek, born Mirza Muhammad Ali Kazem-Bek (1802–1870), was a Russian orientalist of Azerbaijani origin, a pioneering scholar of Islam who founded the Kazan school of oriental studies.
Alexander Kelmans
Alexander Kelmans is a graph theorist who earned his PhD from the Soviet Academy of Sciences in 1968 and later worked at Rutgers and the University of Puerto Rico.
Alexander Kent-Braham
Alexander Kent-Braham (born 1991) is a British technology founder who co-founded and co-leads Marshmallow, a London digital insurer serving migrants, valued at just over $2 billion in 2025.
Alexander Kerensky (Александр Фёдорович Керенский)
Alexander Kerensky (Александр Фёдорович Керенский), 1881–1970, Russian lawyer and politician; minister of justice, war minister, and prime minister of the Provisional Government in 1917, overthrown by the Bolsheviks and exiled to New York.
Alexander Khinshtein
Alexander Khinshtein is a Russian politician and former investigative journalist and legislator who was appointed acting Governor of Kursk Region by a decree signed on December 5, 2024.
Alexander Kielland
Alexander Lange Kielland (1849–1906) was a Norwegian prose writer, editor, and public official, counted among the "four greats" of Norwegian literature alongside Ibsen, Bjørnson, and Lie.
Alexander Kinloch Forbes
Alexander Kinloch Forbes (એલેક્ઝાન્ડર કિન્લોક ફોર્બસ, 1821–1865) was a British East India Company civil servant in Gujarat who founded the Gujarat Vernacular Society and wrote the Ras Mala.
Alexander Kizevetter
Alexander Kizevetter (Александр Кизеветтер) was a Russian historian and Kadet politician, a professor at Moscow University and deputy of the Second State Duma, expelled from Soviet Russia in 1922.
Alexander Kluge
Alexander Ernst Kluge (1932–2026), German filmmaker, writer, lawyer, and TV producer; co-founder of New German Cinema via the 1962 Oberhausen Manifesto; won Venice's Silver Lion (1966) and Golden Lion (1968); founded dctp in 1987; died in Munich aged 94.
Alexander Knaster
Alexander Mark Knaster is a Moscow-born British-American billionaire financier who led Alfa Bank from 1998 to 2004, then founded London-based private equity firm Pamplona Capital Management.
Alexander Knauf
Alexander Knauf (born 1974) is a German family-business executive who was Speaker of the General Partners of the Knauf Group, the family-owned building-materials manufacturer, from 2022.
Alexander Koch
Alexander Koch (born 1969, Bonn) is a German foil fencer, Olympic team gold medalist at Barcelona 1992 and world foil champion individually in 1989 and 1993 and with the team in 1993; later a Currenta engineer and Sporthilfe committee member.