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

  1. 1157 - King Alfonso VII of Castile (b. 1104/1105)
  2. 1153 - Bernard of Clairvaux, French theologian (b. 1090)
  3. 1271 - Alphonse of Toulouse, son of Louis VIII of France (b. 1220)
  4. 1581 - Sakuma Nobumori, Japanese retainer and samurai (b. 1527)
  5. 1614 - Elizabeth Báthory, the world's most prolific female serial killer (b. 1560)
  6. 1627 - Jacques Mauduit, French composer (b. 1557)
  7. 1673 - Henry Grey, 1st Earl of Stamford, English soldier
  8. 1689 - William Cleland, Scottish poet and soldier
  9. 1762 - Lady Mary Wortley Montagu, English writer (b. 1689)
  10. 1763 - Charles Wyndham, 2nd Earl of Egremont, British statesman (b. 1710)
  11. 1796 - John McKinly, American physician and President of Delaware (b. 1721)
  12. 1814 - Benjamin Thompson, American physicist and inventor (b. 1753)
  13. 1836 - Claude-Louis Navier, French physicist (b. 1785)
  14. 1838 - Adelbert von Chamisso, German writer (b. 1781)
  15. 1940 - Leon Trotsky, Russian revolutionary (b. 1879)
  16. 1940 - Ernest Lawrence Thayer, American poet (b. 1863)
  17. 1940 - Hermann Obrecht, member of the Swiss Federal Council (b. 1882)
  18. 1943 - Henrik Pontoppidan, Danish writer, Nobel Prize (b. 1857)
  19. 1947 - Ettore Bugatti, Italian automobile manufacturer (b. 1881)
  20. 1951 - Constant Lambert, British composer and conductor (b. 1905)
  21. 1957 - Harald Ulrik Sverdrup, Norwegian meteorologist and oceanographer (b. 1888)
  22. 1957 - Nels Stewart, professional ice hockey player (b. 1902)
  23. 1960 - David Barnard Steinman, American civil engineer and bridge designer (b. 1886)
  24. 1964 - Palmiro Togliatti, Italian communist leader (b. 1893)
  25. 1978 - Charles Eames, American designer and architect (b. 1907)
  26. 1981 - Michael Devine, the last man to die in the 1981 Irish hunger strike (b. 1954)
  27. 1982 - Sobhuza II, King of Swaziland (b. 1899)
  28. 1983 - Benigno S. Aquino Jr., Philippine opposition leader (b. 1932)
  29. 1988 - Ray Eames, American designer, artist and architect (b. 1912)
  30. 1989 - Raul Seixas, Brazillian Singer (b. 1945)
  31. 1995 - Subrahmanyan Chandrasekhar, Indian-born astrophysicist, Nobel Prize laureate (b. 1910)
  32. 2000 - Daniel Lisulo, Prime Minister of Zambia (b. 1930)
  33. 2003 - Kathy Wilkes, English philosopher and aid worker (b. 1946)
  34. 2003 - Wesley Willis, American musician (b. 1963)
  35. 2005 - Marcus Schmuck, Austrian mountaineer (b. 1925)
  36. 2005 - Robert Moog, American pioneer of electronic music (b. 1934)
  37. 2005 - Dalia Rabikovich, Israeli poet (b. 1936)
  38. 2005 - Martin Dillon, Tenor, American opera singer (b. 1957)
  39. 2006 - Paul Fentener van Vlissingen, Dutch businessman and philantropher (b. 1941)
  40. 2006 - Ustad Bismillah Khan, Indian Musician,ShehnaiMastro (b. 1916)
  41. 2006 - Joe Rosenthal, photographer of the famous Iwo Jima photograph (b. 1911)