Junius Brutus Booth, Jr., American actor, theatre manager (d. 1883) December 24 – Gabriel García Moreno, former President of Ecuador (d. 1875) December 25 – Clara Barton, first president of American Red Cross (d. 1912) Date unknown Giuseppe Bonavia, Maltese architect (d. 1885) Mazhar Nanautawi, Indian freedom struggle activist (d. 1885) Deaths January–June January 4 – Elizabeth Ann Seton, American saint (b. 1774) January 5 – Carlo Porta, Milanese poet (b. 1775) January 19 – Alexandru Suţu, prince of Moldavia (b. 1758) February 23 – John Keats, British poet (b. 1795) February 26 – Joseph de Maistre, French-Savoyard philosopher (b. 1753) March 4 – Princess Elizabeth of Clarence, daughter of William, Duke of Clarence (later King William IV) (b. 1820) March 13 – John Hunter, second Governor of New South Wales (b. 1737) April 10 – Patriarch Gregory V of Constantinople (b. 1746) April 14 – Susan Carnegie, writer and founder of the first public asylum in Scotland (b. 1743) April 20 – Franz Karl Achard, German chemist, physicist and biologist (b. 1753) April 23 – Pierre de Ruel, marquis de Beurnonville, French general (b. 1752) May 2 – Hester Thrale, Welsh diarist (b. 1741) May 5 – Napoleon Bonaparte, French Emperor and general (b. 1769) May 19 – Camille Jordan, French politician (b. 1771) June 7 – Tudor Vladimirescu, Wallachian rebel leader (b. c. 1780) June 17 – Martín Miguel de Güemes, Argentine military leader (b. 1785) June 19 – Peter Ochs, Swiss politician (b. 1752) June 23 – Louise Marie Adélaïde de Bourbon-Penthièvre, Duchess of Orléans, heiress, wife of Philippe Égalité (b. 1753) June 30 – José Fernando de Abascal y Sousa, viceroy of Peru (b. 1743) July–December July 4 – Richard Cosway, English artist (b. 1742) July 14 – Pedro Juan Caballero, Paraguayan captain (b. 1786) (suicide) July 17 – Fulgencio Yegros, Paraguayan general and politician (b. 1780) August – Dorothea von Medem, Latvian diploma, duchess of Courland (b. 1761) August 24 – John William Polidori, English physician, writer (b. 1795) (suicide) September 4 – José Miguel Carrera, Chilean general, founding father (b. 1785) September 10 – Johann Dominicus Fiorillo, German painter, art historian (b. 1748) September 14 – Heinrich Kuhl, German naturalist, zoologist (b. 1797) October 4 – Marie-Louise Lachapelle, French obstetrician (b. 1769) October 6 – Anders Jahan Retzius, Swedish chemist, botanist (b. 1742) October 8 – Juan O'Donojú, viceroy of New Spain (b. 1762)