21 April Deaths

April 21 is the 111th day of the year (112th in leap years) in the Gregorian calendar. There are 254 days remaining until the end of the year. This date is slightly more likely to fall on a Tuesday, Thursday or Saturday (58 in 400 years each) than on Sunday or Monday (57), and slightly less likely to occur on a Wednesday or Friday (56).

Deaths

234 – Emperor Xian of Han, Chinese emperor (b. 181)
586 – Liuvigild, king of the Visigoths
847 – Odgar, Frankish monk and archbishop
866 – Bardas, Byzantine general
941 – Bajkam, Turkish commander
1073 – Pope Alexander II
1109 – Anselm of Canterbury, Italian-English archbishop and saint (b. 1033)
1136 – Stephen, Count of Tréguier Breton noblemen (b. c. 1058/62)
1142 – Peter Abelard, French philosopher and theologian (b. 1079)
1213 – Maria of Montpellier, Lady of Montpellier, Queen of Aragon (b. 1182)
1329 – Frederick IV, Duke of Lorraine (b. 1282)
1509 – Henry VII of England (b. 1457)
1557 – Petrus Apianus, German mathematician and astronomer (b. 1495)
1574 – Cosimo I de' Medici, Grand Duke of Tuscany (b. 1519)
1699 – Jean Racine, French playwright and poet (b. 1639)
1701 – Asano Naganori, Japanese daimyo (b. 1667)
1719 – Philippe de La Hire, French mathematician and astronomer (b. 1640)
1720 – Antoine Hamilton, Irish-French soldier and author (b. 1646)
1722 – Robert Beverley, Jr., English historian and author (b. 1673)
1736 – Prince Eugene of Savoy (b. 1663)
1740 – Thomas Tickell, English poet and author (b. 1685)
1758 – Francesco Zerafa, Maltese architect (b. 1679)
1792 – Tiradentes, Brazilian activist (b. 1746)
1815 – Joseph Winston, American soldier and politician (b. 1746)
1825 – Johann Friedrich Pfaff, German mathematician and academic (b. 1765)
1852 – Ivan Nabokov, Russian general (b. 1787)
1863 – Sir Robert Bateson, 1st Baronet, Irish politician (b. 1782)
1900 – Vikramatji Khimojiraj, Indian ruler (b. 1819)
1910 – Mark Twain, American novelist, humorist, and critic (b. 1835)
1918 – Manfred von Richthofen, German captain and pilot (b. 1892)
1924 – Eleonora Duse, Italian actress (b. 1858)
1930 – Robert Bridges, English poet and author (b. 1844)
1932 – Friedrich Gustav Piffl, Bohemian cardinal (b. 1864)
1938 – Muhammad Iqbal, Indian-Pakistani philosopher and poet (b. 1877)
1941 – Fritz Manteuffel, German gymnast (b. 1875)
1945 – Walter Model, German field marshal (b. 1891)
1946 – John Maynard Keynes, English economist and philosopher (b. 1883)
1948 – Aldo Leopold, American ecologist and author (b. 1887)
1952 – Leslie Banks, American actor, director and producer (b. 1890)
1954 – Emil Leon Post, Polish-American mathematician and logician (b. 1897)
1956 – Charles MacArthur, American playwright and screenwriter (b. 1895)
1965 – Edward Victor Appleton, English-Scottish physicist and academic, Nobel Prize laureate (b. 1892)
1971 – François Duvalier, Haitian physician and politician, 40th President of Haiti (b. 1907)
1973 – Arthur Fadden, Australian accountant and politician, 13th Prime Minister of Australia (b. 1894)
1973 – Kemal Tahir, Turkish journalist and author (b. 1910)
1974 – Chic Harley, American football player (b. 1894)
1977 – Gummo Marx, American vaudevillian and talent agent (b. 1893)
1978 – Sandy Denny, English singer-songwriter (b. 1947)
1978 – Thomas Wyatt Turner, American biologist and academic (b. 1877)
1980 – Alexander Oparin, Russian biochemist and academic (b. 1894)
1980 – Sohrab Sepehri, Iranian poet and painter (b. 1928)
1983 – Walter Slezak, Austrian-American actor and singer (b. 1902)
1984 – Marcel Janco, Romanian-Israeli artist (b. 1895)
1984 – Hristo Prodanov, Bulgarian engineer and mountaineer (b. 1943)
1985 – Rudi Gernreich, Austrian-American fashion designer, created the monokini (b. 1922)
1985 – Tancredo Neves, Brazilian banker and politician, Prime Minister of Brazil (b. 1910)
1986 – Marjorie Eaton, American painter and actress (b. 1901)
1986 – Salah Jahin, Egyptian poet, playwright, and composer (b. 1930)
1987 – Gustav Bergmann, Austrian-American philosopher from the Vienna Circle (b. 1906)
1989 – James Kirkwood, Jr., American actor, playwright, and author (b. 1924)
1990 – Erté, Russian-French illustrator (b. 1892)
1991 – Willi Boskovsky, Austrian violinist and conductor (b. 1909)
1996 – Zora Arkus-Duntov, Belgian-born American engineer and racing driver (b. 1909)
1996 – Dzhokhar Dudayev, Chechen general and politician, 1st President of Ichkeria (b. 1944)
1996 – Abdul Hafeez Kardar, Pakistani cricketer (b. 1925)
1996 – Jimmy Snyder, American sportscaster (b. 1919)
1998 – Jean-François Lyotard, French sociologist and philosopher (b. 1924)
1999 – Buddy Rogers, American actor (b. 1904)
2003 – Nina Simone, American singer-songwriter, pianist, and activist (b. 1933)
2004 – Mary McGrory, American journalist (b. 1918)
2005 – Gerry Marshall, English race car driver and journalist (b. 1941)
2006 – Johnny Checketts, New Zealand commander and pilot (b. 1912)
2006 – T. K. Ramakrishnan, Indian politician (b. 1922)
2006 – Telê Santana, Brazilian footballer and manager (b. 1931)
2007 – Lobby Loyde, Australian guitarist, songwriter, and producer (b. 1941)
2010 – Gustav Lorentzen, Norwegian singer-songwriter and guitarist (b. 1947)
2010 – Juan Antonio Samaranch, Spanish businessman (b. 1920)
2010 – Kanagaratnam Sriskandan, Sri Lankan-English engineer and civil servant (b. 1930)
2011 – Catharina Halkes, Dutch theologian and academic (b. 1920)
2012 – Doris Betts, American author and academic (b. 1932)
2012 – Charles Colson, American lawyer and activist, founded Prison Fellowship (b. 1931)
2012 – Albert Falco, French captain and diver (b. 1927)
2012 – Charles Higham, English-American author and poet (b. 1931)
2012 – Jerry Toppazzini, Canadian ice hockey player and coach (b. 1931)
2013 – Kriyananda, Romanian-American spiritual leader (b. 1926)
2013 – Chrissy Amphlett, Australian singer-songwriter and actress (b. 1959)
2013 – Shakuntala Devi, Indian mathematician and astrologer (b. 1929)
2013 – Leopold Engleitner, Austrian Holocaust survivor, author, and educator (b. 1905)
2013 – Gordon D. Gayle, American general and historian (b. 1917)
2014 – Herb Gray, Canadian lawyer and politician, 7th Deputy Prime Minister of Canada (b. 1931)
2014 – Janet Gray Hayes, American politician, 60th Mayor of San Jose (b. 1926)
2014 – George H. Heilmeier, American engineer (b. 1936)
2014 – Win Tin, Burmese journalist and politician, co-founded the National League for Democracy (b. 1930)
2015 – M. H. Abrams, American author, critic, and academic (b. 1912)
2015 – Steve Byrnes, American sportscaster and producer (b. 1959)
2015 – John Moshoeu, South African footballer and manager (b. 1965)
2015 – Janaki Ballabh Patnaik, Indian politician, Governor of Assam (b. 1927)
2015 – Sydney Valpy Radley-Walters, Canadian general (b. 1920)
2015 – Betsy von Furstenberg, German-American actress (b. 1931)
2016 – Lonnie Mack, American singer-songwriter and guitarist (b. 1941)
2016 – Prince, American singer-songwriter, guitarist, producer, and actor (b. 1958)

Source: wikipedia