John Cummings Howell, United States Navy admiral (d. 1892) December 10 – Felice Orsini, Italian revolutionary (d. 1858) December 29 – Carl Siegmund Franz Credé, German gynecologist, obstetrician (d. 1892) December 30 – Theodor Fontane, German writer (d. 1898) Date unknown Alexandru G. Golescu, 11th Prime Minister of Romania (d. 1881) Deaths January–June January 9 – Princess Catherine Pavlovna of Russia, Queen of Württemberg (b. 1788) January 12 – Benedikte Naubert, German writer (b. 1752) January 19 – Elsa Beata Bunge, Swedish botanist (b. 1734) January 20 – King Charles IV of Spain (b. 1748) February 5 – Nikolai Nikolev, Russian poet, playwright (b. 1758) February 17 – Henry Constantine Jennings, British collector, gambler (b. 1731) February 25 – Francisco Manoel de Nascimento, Portuguese poet (b. 1734) March – Nonosbawsut, Beothuk (indigenous Canadian) leader March 10 – Friedrich Heinrich Jacobi, German philosopher (b. 1743) April 15 – Oliver Evans, American inventor, engineer and businessman (b. 1755) May 8 – Kamehameha I, King of Hawaii (b. 1738) May 22 – Hugh Williamson, American Founding Father (b. 1735) June 6 – Johann von Hiller, Austrian general (b. 1754) June 28 – María Antonia Santos Plata, Neogranadine rebel leader, heroine (b. 1782) July–December July 1 – the Public Universal Friend, American preacher (b. 1752) July 6 – Sophie Blanchard, French aeronaut (b. 1778) July 20 – John Playfair, Scottish scientist, mathematician (b. 1748) July 26 – George Leonard, American lawyer, jurist and politician (b. 1729) August 3 – Simon Knéfacz, Croatian writer (b. 1752) August 9 – John Faucheraud Grimké, American politician (b. 1752) August 16 – William Lewis, American politician (b. 1752) August 21 – Haim Farhi, Jewish adviser to the Ottoman Empire (assassinated) (b. 1760) August 23 – Oliver Hazard Perry, American naval officer (b. 1785) August 25 – James Watt, Scottish inventor (b. 1736) September 12 – Gebhard Leberecht von Blücher, Prussian general (b. 1742) September 18 – John Langdon, American Founding Father (b. 1741) September 20 – Abbé Faria, Luso-Goan hypnotist (b. 1746) October 6 – Charles Emmanuel IV of Savoy, King of Sardinia (b. 1751) October 7 – William Samuel Johnson, American Founding Father (b. 1727) October 13 – Imperial Concubine Chun of the Jiaqing Emperor of China October 26 – Thomas Johnson, American politician and jurist (b. 1732) November 7 – Caleb Strong, American politician (b. 1745) November 9 – Simon Snyder, American politician (b. 1759) November