Editing 1827 (section)

=== January–June ===
[[File:Beethoven.jpg|110px|thumb|[[Ludwig van Beethoven]]]]
[[File:Alessandro Volta.jpeg|110px|thumb|[[Alessandro Volta]]]]
* [[January 5]] – [[Prince Frederick, Duke of York and Albany]], heir-presumptive to the British throne (b. [[1763]])
* [[January 19]] – [[Ludwig von Brauchitsch]], Prussian general (b. [[1757]])
* [[February 13]] – [[Caleb Brewster]], Patriot spy during the American Revolutionary War (b. [[1747]])
* [[February 19]] – [[Armand Augustin Louis de Caulaincourt]], French general, diplomat (b. [[1773]])
* [[February 23]] – [[Felipe Enrique Neri]], Texas legislator, colonizer (b. [[1759]])
* [[February 17]] – [[Johann Heinrich Pestalozzi]], Swiss pedagogue (b. [[1746]])
* [[February 28]] – [[Thomas Holloway (painter)|Thomas Holloway]], English portrait painter, engraver (b. [[1748]])
* [[March 5]]
** [[Pierre-Simon Laplace]], French mathematician (b. [[1749]])
** [[Alessandro Volta]], Italian physicist (b. [[1745]])
* [[March 26]] – [[Ludwig van Beethoven]], German composer (b. [[1770]])
* [[March 31]] – [[Marie Barch]], Danish ballerina (b. [[1744]])
* [[April 12]] – [[Michele Troja]], Italian physician (b. [[1747]])
* [[April 29]]
** [[Deborah Sampson]], first American female soldier (b. [[1760]])
** [[Rufus King]], American lawyer, politician and diplomat (b. [[1755]])
* [[May 5]] – [[Frederick Augustus I of Saxony]] (b. [[1750]])
* [[May 27]] – [[Melesina Trench]], Irish-born writer, socialite (b. [[1768]])
* [[June 26]] – [[Samuel Crompton]], English inventor (b. [[1753]])