- Jan 17 Daniel Albert Wyttenbach, German-Swiss classicl scholar and historian, dies at 73
- Jan 23 Prince Edward Augustus, Duke of Kent and Strathearn
George III
Jan 29 King George III, King of the United Kingdom of Great Britain and Ireland, and King/Elector of Hanover (1760-1820), dies after years of mental illness at 81
George III
- Feb 14 Charles F, Duke of Berry, murdered at 42
- Feb 14 Cosme Argerich, Argentine physician and founder of the Medicine School of Buenos Aires, dies at 61
- Feb 15 Pierre-Joseph Cambon, French member of Committee of Salut Public, dies at 63
- Feb 15 William Ellery, US attorney (signed US Declaration of Independence), dies at 92
- Feb 16 Georg Carl von Döbeln, Swedish Lieutenant General and war hero, dies at 61
- Feb 29 Johann Joachim Eschenburg, German literary critic (b. 1743)
- Mar 11 Benjamin West, Anglo-American painter (Death of General Wolfe), dies at 81
- Mar 12 Alexander Mackenzie, Scottish born Canadian explorer, First European to cross North America, dies at roughly 56
- Mar 15 Clemens Maria Hofbauer, patron saint of Vienna (b. 1751
- Mar 22 American military hero Commodore Stephen Decatur, killed in a duel with Commodore James Barron at 41
- Apr 5 Henrik C Cras, lawyer (Laudatio Hugonis Grotii), dies at 81
- Apr 8 Thomas Douglas, 5th Earl of Selkirk, Scottish philanthropist, dies at 48
- Apr 20 Arthur Young, English writer on agriculture (Annals of Agriculture), dies at 78
- Jun 9 Wilhelmina of Prussia, Princess of Orange (1767-1806), dies at 68
Joseph Banks
Jun 19 Joseph Banks, English natural historian (Cook/Australia), dies
Joseph Banks
Manuel Belgrano
Jun 20 Manuel Belgrano, Argentine politician and Military Leader who took part in the Argentine Wars of Independence and created the Flag of Argentina, dies at 50
Manuel Belgrano
- Aug 6 Princess Frederica Charlotte of Prussia, Duchess of York and Albany, dies at 53
- Aug 7 Élisa Bonaparte, Corsican monarch of Lucca and sister of Napoleon, dies at 43
- Aug 28 Andrew Ellicott, American surveyor (b. 1754)
- Sep 2 Jiaqing, 5th Emperor of Qing Dynasty, dies at 59
- Sep 3 Benjamin Henry Latrobe, American architect (completed U.S. Capitol), dies at 56
- Sep 7 Coert L van Beyma thoe Kingma, Fries regent/patriot, dies at 67
- Sep 21 Joseph R Drake, American poet (American Flag), dies at 25)
Daniel Boone
Sep 26 Daniel Boone, American frontiersman and explorer (US Hall of Fame 1915), dies at 85
Daniel Boone