- 833 Ansegis [Ansegius], French abbot of Fontenelle and writer, dies at about 63
- 985 Antipope Boniface VII (974, 984–985)
- 1031 Robert II of France [the Pious, the Wise], King of the Franks (996-1031), dies during a civil war at 59
- 1156 Emperor Toba of Japan (b. 1103)
- 1160 Peter Lombard, French theologian
- 1201 Agnes of France, queen of France, dies [or 7/18]
- 1320 King Oshin of Armenia (b. 1282)
- 1322 Frederik II van Sierck, bishop of Utrecht (1317-22), dies
- 1351 Margaretha Ebner, German visionary (b. 1291)
- 1387 Robert IV of Artois, Count of Eu (poisoned) (b. 1356)
- 1398 Roger Mortimer, 4th Earl of March, heir to the throne of England, dies at 24
- 1453 Enguerrand de Monstrelet, French chronicler
- 1454 Johan II, King of Castile, dies at 49
- 1524 Claude of France, Duchess of Brittany and wife of Francis I of France, dies at 24
- 1573 Lancelot of Brederode, water beggar, beheaded
- 1597 Franciscus Raphelengius [French of Ravelingen], Neth publisher, dies
- 1607 Paulus Merula, Dutch lawyer and historian (Historia Belgica), dies at 48
- 1609 Federico Zuccari, Italian Mannerist painter, dies at about 69
- 1616 Hugh O'Neill, 3rd Earl of Tyrone, Irish soldier
- 1636 John Oldham, trader in Mass, murdered by indians
- 1704 Peregrine White, First English child born in the Massachusetts Bay Colony, dies at 83
- 1766 Isabelle Farnese, queen of Spain, dies
- 1816 Gavrila Romanovich Derzhavin, Russian poet (b. 1743)
- 1819 John Playfair, Scottish geologist/mathematician, dies
- 1824 Joan Melchior Kemper, Dutch lawyer (designed civil code law book), dies at 48
- 1833 Ninian Edwards, American politician (Governor of Illinois Territory, 1809–1813; U.S. Senator from Illinois, 1818–1824; Governor of Illinois 1826–1830), dies of cholera at 58
- 1859 Hans E Schack, Danish politician/writer (Fantasy), dies
- 1866 Faa di Bruno, Italian captain (Er d'italia, Lissa), commits suicide
- 1866 Berhard Riemann, German mathematician (zeta-function), dies at 39
- 1881 Thomas Fermor-Hesketh, English 1st baron of Hesketh, dies
- 1888 Henri Braekeleer, Flemish painter, dies at 48
- 1897 Jean Ingelow, English poet (b. 1820)
- 1897 Philip Dale Roddey, American Brigadier General (Confederate Army), dies at 71
- 1901 William Cosmo Monkhouse, English poet and critic (b. 1840)
- 1912 Andrew Lang, Scottish poet, novelist, literary critic, and anthropologist (Andrew Lang's Fairy Books), dies at 68
- 1922 Andrey Markov, Russian mathematician (Markov Chain), dies at 66
- 1923 Pancho Villa [José Doroteo Arango Arámbula], Mexican revolutionary general and guerrilla leader,, murdered at 55
- 1926 Felix Dzerzhinsky [Iron Felix, Bloody Felix], Soviet statesman, established and developed Soviet secret police (Cheka, forerunner to the KGB), dies at 48
- 1927 Ferdinand I VAM, King of Romania (1914-27), dies at 61
- 1928 Kostas Karyotakis, Greek poet, dies at 31
- 1932 René Bazin, French novelist (b. 1853)
- 1936 Jose Sanjurjo, Spanish general (Morocco) and high director, dies at 64
Guglielmo Marconi
1937 Guglielmo Marconi, Italian inventor and electrical engineer who pioneered work on long distance radio transmission (Nobel 1909), dies of a heart attack at 63
Guglielmo Marconi
- 1939 Joseph Mendes da Costa, sculptor, dies
- 1940 Y G Van de Peat, Dutch director of employment, commits suicide
- 1941 Lew Fields, American vaudeville performer (b. 1867)
- 1942 Patric Cobb, British sea officer, dies in battle
- 1944 Arthur J Treadwell, English mayor of Stoke Newington, dies at about 71
- 1944 Brandt, col/German staff chief, dies in bombing
- 1944 Claus Schenk von Stauffenberg, count/German antifascist colonel, dies
- 1944 Friedrich Olbricht, German general (July 20th plotter), executed
- 1944 Korten, chef gen of Germany Luftwaffe, dies in bomb explosion
- 1944 Ludwig Beck, German general (July 20th plot), dies at 64
- 1944 Mertz, German colonel (July 20th plotter), executed
- 1944 Rudolf Schmundt, German general /Hitler's Army adjunct, dies from wounds in attempt to assassinate Hitler at 48
- 1944 Werner von Haeffen, German lieutenant (July 20th plotter), executed
- 1945 Paul Valéry [Ambroise Paul Toussaint Jules Valéry], French author, philosopher and poet (La Jeune Parque), dies at 73
- 1951 Abdullah Ibn Hussein, Jordan's King (1946-51), killed in Jerusalem
- 1951 Mustafa Shuqri Ashu, tailor/murderer of king Abdullah, shot to death
- 1951 Wilhelm, the last Crown Prince of the German Empire and the Kingdom of Prussia, dies at 69
- 1953 Dumarsaid Estime, President of Haiti (b. 1900)
- 1953 Jan Struther, British author (b. 1901)
- 1954 Blair Moody, American journalist (US Senator (D)-Michigan, 1951-52), dies at 52
- 1956 James Alexander Calder, Canadian politician, dies at 87
- 1959 William D. Leahy, American admiral and chief of staff during WWII, dies at 84
- 1962 Andre Renard, Belgium worker's union leader (MSU), dies at 51
- 1962 George MacAulay Trevelyan, English royal historian, dies at 86
- 1964 Anna Vyrubova, Russian lady-in-waiting, the best friend and confidante of Tsaritsa Alexandra Fyodorovna, dies at 80
- 1970 Iain Macleod, Conservative Party Politician and Chancellor of Exchequer at time of his death (b. 1913)
- 1973 Robert Smithson, American land artist (b. 1938)
- 1976 Samuel Mutendi, founder of the Zimbabwean Zion Christian Church, dies
- 1982 Okot p'Bitek, Ugandan poet (b. 1931)
- 1984 Jim Fixx, American jogger and writer (Jim Fixx on Running), dies at 52
- 1985 Bruno de Finetti, Italian probabilist statistician and actuary, dies at 79
- 1989 Marie-Madeleine Fourcade, commander (French resistance), dies
- 1990 Herbert Jenkins, Atlanta's longest serving police chief (b. 1907)
- 1993 Vince Foster, American lawyer and Deputy White House Counsel commits suicide aged 48
- 1994 Paul Delvaux, Belgian surrealist painter, dies at 96
- 1994 Reginald Hall, English endocrinologist, dies at 83
- 1995 Helmut Gernsheim, German photographer, collector and historian, dies at 82
- 1995 Ernest Mandel, Belgian philosopher and economist (Marxist), dies at 72
- 1996 Colin Campbell Mitchell, soldier, dies at 70
- 1996 Peter Malcolm Gordon Raleigh, journalist, dies at 77
- 2000 Gregory Hill (also known as Malaclypse the Younger,) American writer (Principia Discordia), dies at 59
- 2001 Carlo Giuliani, Italian anarchist (b. 1978)
- 2003 Nicolas Freeling, English writer (b. 1927)
- 2004 Adi Lady Lala Mara, Fiji chieftainess, wife of Kamisese Mara (b. 1931)
- 2005 Finn Gustavsen, Norwegian politician (b. 1926)
- 2006 Ted Grant, British Trotskyist (b. 1913)
- 2011 Lucian Freud, German-British artist (Benefits Supervisor Sleeping, Boy With a Rat), dies at 88
- 2015 Elio Fiorucci, Italian fashion designer, dies at 80