– Abbé Charles Étienne Brasseur de Bourbourg, French writer, historian (b. 1814) January 14 – Johann Philipp Reis, German scientist, inventor (b. 1834) January 17 – Chang and Eng Bunker, Siamese twins, sideshow performers (b. 1811) January 19 – August Heinrich Hoffmann von Fallersleben, German poet (b. 1798) January 28 – Ludwig von Gablenz, Austrian general (b. 1814) February 3 – William Charles Lunalilo, last monarch of the House of Kamehameha (b. 1835) February 8 – David Friedrich Strauss, German theologian (b. 1808) February 24 – John Bachman, American Lutheran minister, social activist and naturalist (b. 1790) February 27 – Carlos Manuel de Céspedes, Cuban revolutionary hero (b. 1819) March 8 – Millard Fillmore, 74, 13th President of the United States (b. 1800) March 10 – Moritz von Jacobi, German engineer, physicist (b. 1801) March 11 – Charles Sumner, American senator, civil rights activist (b. 1811) March 20 – Hans Christian Lumbye, Danish composer (b. 1810) March 30 – Carl Julian (von) Graba, German lawyer and ornithologist who visited the Faroe Islands (b. 1799) April 13 – Etō Shimpei, Japanese statesman (executed) (b. 1834) April 20 – Alexander H. Bailey, American politician (b. 1807) June 17 – Sir Stephen Glynne, British antiquary and politician (b. 1817) June 20 – John Ruggles, American politician (b. 1789) June 21 – Anders Jonas Ångström, Swedish physicist (b. 1814) July–December July 8 – Agnes Strickland, English popular historian (b. 1796) July 12 – Fritz Reuter, German novelist (b. 1810) July 24 – Gijsbert Haan, Dutch-American religious leader (b. 1801) August 14 – Jonathan Clarkson Gibbs, African-American minister, politician (b. 1821) August 26 – Julie-Victoire Daubié, French journalist (b. 1824) August 27 – Ștefan Golescu, 8th prime minister of Romania (b. 1809) September 12 – François Guizot, Prime Minister of France (b. 1787) October 5 – Charles-Mathias Simons, Prime Minister of Luxembourg (b. 1802) October 6 – Samuel M. Kier, American oil magnate (b. 1813) October 23 – Abraham Geiger, German rabbi, a founder of European Reform Judaism (b. 1810) October 28 – William Henry Rinehart, American sculptor (b. 1825) November 17 – Francisco de Lersundi y Hormaechea, Spanish noble and politician, Prime Minister of Spain (b. 1817) November 18 – Sir Henry Prescott, British admiral and colonial administrator (b. 1783) November 29 – Ioan Manu, Russian politician (b. 1803) December 7 – Constantin von Tischendorf, German Biblical scholar (b. 1815) December 22 – Johann