Vicente Guerrero
Feb 14 Vicente Guerrero, Mexican revolutionary hero, general and 2nd President of Mexico (1829, executed by firing squad at 48
- Feb 14 Henry Maudslay, English inventor of the metal lathe, dies at 59
- Mar 9 Friedrich Maximilian von Klinger, German playwright (Der Wirrwarr, oder Sturm und Drang) and novelist, dies at 79
- Mar 26 Richard Allen, 1st African American ordained by Methodist-Episcopal church, dies at 71
- Apr 2 Charles Felix, blind King of Sardina (1821-31), dies at 74
- Apr 19 Johann Gottlieb Friedrich von Bohnenberger, German mathematician, dies at 65
- Apr 20 John Abernethy, English surgeon, dies at 67
- May 1 Antonius van Alphen, apostle vicar of De Bosch, dies at 82
- May 13 Christian Gottfried Körner, German lawyer, dies at 74
- May 26 Georg Hermes, German philosopher and theologist (Hermenianen), dies
- May 26 Ciro Menotti, Italian patriot (b. 1798)
- May 27 Jedediah Smith, American explorer (b. 1799)
- May 31 Samuel Bentham, British mechanical engineer (b. 1757)
- Jun 10 Hans Karl von Diebitsch, Russian field marshal (b. 1785)
Sophie Germain
Jun 27 Sophie Germain, French mathematician, dies at 55
James Monroe
Jul 4 James Monroe, 5th US President (1817-25), dies of heart failure and tuberculosis at 73
- Jul 16 Louis Alexandre Andrault de Langeron, Russian general (b. 1763)
- Jul 21 Emil Aarestrup, Danish physician and poet (Ritornellen), dies at 55
- Aug 23 August WA Grave von Gneisenau, Prussian fieldmarshal, dies at 70
- Sep 27 Henry van Wine, archivist/founder General Rijksarchief, dies at 91
- Sep 27 Joannis Capodistrias, Greek governor of Troezen, murdered at 55
- Oct 9 Ioannis Kapodistrias, President (1829-31) and founding father of modern Greece.
- Oct 14 Jean-Louis Pons, French astronomer (b. 1761)
Nat Turner
Nov 11 Nat Turner, slave rebel who led a violent insurrection in Virginia, hanged at 31
- Nov 14 Georg Wilhelm Friedrich Hegel, German philosopher and inventor (dialectic), dies at 61
- Nov 16 Carl von Clausewitz, Prussian general and strategist (Campaign 1813), dies at 51
- Dec 8 James Hoban, architect who designed White House, dies
- Dec 10 Thomas Johann Seebeck, German physicist (Seebeck effect), dies at 61
- Dec 15 Paulus Roelof Cantz'laar, Dutch naval officer and colonial governor, dies at 60
- Dec 18 Willem Bilderdijk, Dutch poet and literature (My Relief), dies at 75