The following is a list of notable world figures who died on April 21st.

  1. 748 - Empress Gensho of Japan (b. 680)
  2. 1073 - Pope Alexander II
  3. 1109 - Anselm of Canterbury, Archbishop of Canterbury
  4. 1142 - Pierre Abélard, French writer (b. 1079)
  5. 1329 - Frederick IV, Duke of Lorraine (b. 1282)
  6. 1509 - King Henry VII of England (b. 1457)
  7. 1551 - Oda Nobuhide, Japanese warlord (b. 1510)
  8. 1557 - Petrus Apianus, German mathematician (b. 1495)
  9. 1574 - Cosimo I de' Medici, Grand Duke of Tuscany (b. 1519)
  10. 1699 - Jean Racine, French dramatist (b. 1639)
  11. 1701 - Asano Naganori, Japanese warlord (b. 1667)
  12. 1719 - Philippe de la Hire, French mathematician and historian (b. 1640)
  13. 1720 - Antoine Hamilton, French writer (b. 1646)
  14. 1722 - Robert Beverley, Jr., historian of Colonial Virginia (b. 1673)
  15. 1793 - John Michell, English seismologist (b. 1724)
  16. 1815 - Joseph Winston, U.S. Congressman from North Carolina (b. 1746)
  17. 1825 - Johann Friedrich Pfaff, German mathemattician (b. 1765)
  18. 1852 - Ivan Nabokov, Russian general (b. 1787)
  19. 1868 - Henry James O'Farrell, Australian would-be assassin of Prince Alfred, Duke of Edinburgh (hanged)
  20. 1910 - Mark Twain, American author and humorist (b. 1835)
  21. 1918 - Manfred von Richthofen, German pilot (b. 1892)
  22. 1924 - Eleonora Duse, Italian actress (b. 1858)
  23. 1930 - Robert Bridges, English poet (b. 1844)
  24. 1938 - Allama Iqbal, Indian philosopher and poet (b. 1877)
  25. 1945 - Walter Model, German field marshal (b. 1891)
  26. 1946 - John Maynard Keynes, English economist (b. 1883)
  27. 1956 - Charles MacArthur, American writer (b. 1895)
  28. 1965 - Edward Victor Appleton, English physicist, Nobel Prize laureate (b. 1892)
  29. 1971 - François "Papa Doc" Duvalier, Haitian dictator (b. 1907)
  30. 1973 - Arthur Fadden, thirteenth Prime Minister of Australia (b. 1894)
  31. 1977 - Gummo Marx, American actor and comedian (b. 1892)
  32. 1978 - Sandy Denny, British vocalist (b. 1947)
  33. 1978 - Thomas Wyatt Turner, American civil rights advocate and agricultural engineer
  34. 1980 - Aleksandr Oparin, Russian biochemist (b. 1894)
  35. 1983 - Walter Slezak, Austrian actor (b. 1902)
  36. 1985 - Rudi Gernreich, Austrian fashion designer (b. 1922)
  37. 1985 - Tancredo de Almeida Neves, Brazil banker and elected president (b. 1910)
  38. 1989 - Princess Dukhye of Korea (b. 1912)
  39. 1990 - Erté, French artist (b. 1892)
  40. 1991 - Willi Boskovsky, Austrian violinist and conductor (b. 1909)
  41. 1996 - Dzhokhar Dudaev, Chechen leader (b. 1944)
  42. 1996 - Jimmy the Greek, American bookie and sports broadcaster (b. 1919)
  43. 1999 - Charles 'Buddy' Rogers, American actor and musician (b. 1904)
  44. 2000 - Neal Matthews, Jr., American singer (b. 1929)
  45. 2003 - Nina Simone, American singer and pianist (b. 1933)
  46. 2004 - Mary McGrory, American journalist (b. 1918)
  47. 2005 - Gerry Marshall, British racing driver (b. 1941)
  48. 2006 - Telê Santana, Brazilian football manager (b. 1931)