Died in 1866

Jan 10 Pyotr Pletnyov a minor Russian poet and literary critic, who rose to become the dean of the Saint Petersburg University and academician of the Petersburg Academy of Sciences.
Jan 14 Giovanni Gussone an Italian academic and botanist, remembered for his work in plant taxonomy and his research of Sicilian flora.
Jan 15 Massimo d'Azeglio an Italian statesman, novelist and painter.
Jan 15 Rudolf von Auerswald a German official who served as Prime Minister of Prussia during the Revolution of 1848. Later, during the ministry of Charles Anthony, Prince of Hohenzollern, he led the government in all but name
Jan 16 Phineas Quimby an American spiritual teacher. Quimby was a philosopher, magnetizer, mesmerist, healer, and inventor, who resided in Belfast, Maine, and had an office in Portland, Maine. Quimby's work is widely recognized as leading to the New Thought movement
Jan 23 Thomas Love Peacock an English novelist, poet, and official of the East India Company. He was a close friend of Percy Bysshe Shelley and they influenced each other's work. Peacock wrote satirical novels, each with the same basic setting — characters at a table discussing and criticising the philosophical opinions of the day
Jan 23 Peter Joseph Lenné a Prussian gardener and landscape architect from Bonn who worked in the German classicist style.
Jan 27 John Gibson (sculptor) a Welsh Neoclassical sculptor who spent most of his career in Italy.
Jan 31 Friedrich Rückert a German poet, translator, and professor of Oriental languages.
Feb 2 Léopold Aimon a French composer. His compositional output includes 10 operas, some symphonies , 2 bassoon concertos, a cello concerto, two cantatas, several sacred vocal works, more than 30 string quartets, and other chamber music
Feb 3 François-Xavier Garneau a nineteenth-century French Canadian notary, poet, civil servant and liberal who wrote a three-volume history of the French Canadian nation entitled Histoire du Canada between 1845 and 1848.
Feb 5 Rodolphe de Maistre None
Feb 11 Thuwaini bin Said Sultan of Muscat and Oman the third son of Said bin Sultan, Sultan of Muscat and Oman. Thuwaini was born in Oman, and never visited Zanzibar. When his father was away on Zanzibar, Thuwaini was his representative in Oman
Feb 11 William Thomas Brande an English chemist.
Feb 21 Madame Saqui a noted French tightrope walker or "rope dancer." For a time she had her own theatre, which she had re-decorated. She continued to perform into her seventies. In her day she was something of a celebrity and is mentioned in Vanity Fair by William Makepeace Thackeray
Feb 21 Manuel Felipe de Tovar President of Venezuela from 1859–1861.
Feb 24 Bernhard Rudolf Abeken a German philologist and literature historian.
Feb 27 John K. Jackson an American lawyer and soldier. He served as a Confederate general during the American Civil War, mainly in Florida and the Western Theater of the conflict. Afterward Jackson resumed his law practice until dying from pneumonia a year after the war ended
Feb 28 Henryk Rzewuski a Polish Romantic-era journalist and novelist.
Mar 4 Alexander Campbell (clergyman) historically known as the Restoration Movement, and by some as the "Stone-Campbell Movement." It resulted in the development of non-denominational Christian churches, which stressed reliance on Scripture and few essentials.:111 Campbell was influenced by similar efforts in Scotland, before emigrating to the United States. He was influenced by James and Robert Haldane, who emphasized a return to original Christianity as found in the New Testament. In 1832, the group of reformers led by the Campbells merged with a similar effort that began under the leadership of Barton Stone in Kentucky.:112 Their congregations identified as Disciples of Christ or Christian churches. Several American church groups have historical roots in the Campbells' efforts, including the Churches of Christ, the Christian churches and churches of Christ, Evangelical Christian Church in Canada, and the Christian Church. Alexander Campbell founded Bethany College in Bethany, West Virginia
Mar 5 John Conolly an English psychiatrist.
Mar 6 William Gore Ouseley a British diplomat who served in various roles in Washington, D.C., Rio de Janeiro and Buenos Aires. His main achievement were negotiations concerning ownership of Britain's interests in what is now Honduras and Nicaragua
Mar 6 William Whewell an English polymath, scientist, Anglican priest, philosopher, theologian, and historian of science. He was Master of Trinity College, Cambridge. In his time as a student there, he achieved distinction in both poetry and mathematics
Mar 6 Ignaz Paul Vital Troxler a Swiss physician, politician, and philosopher.
Mar 7 Siméon-François Berneux a French Catholic missionary, and a member of the Paris Foreign Missions Society who was canonized as a saint.
Mar 11 Ulysses F. Doubleday a U.S. Representative from New York
Mar 15 Ferdinand Flocon a French journalist and politician who was one of the founding members of the Provisional Government at the start of the French Second Republic in 1848. He was Minister of Agriculture and Commerce for the Executive Commission of 1848. He opposed Louis Napoleon and was forced into exile in the Second French Empire
Mar 17 Menachem Mendel Schneersohn an Orthodox rabbi, leading 19th century posek, and the third Rebbe of the Chabad Lubavitch chasidic movement.
Mar 20 Rikard Nordraak a Norwegian composer. He is best known as the composer of the Norwegian national anthem, "Ja, vi elsker dette landet"
Mar 21 Nadezhda Durova a woman who, while disguised as a man, became a decorated soldier in the Russian cavalry during the Napoleonic wars. She was the first known female officer in the Russian military. Her memoir, The Cavalry Maiden, is a significant document of its era because few junior officers of the Napoleonic wars published their experiences, and because it is one of the earliest autobiographies in the Russian language
Mar 22 Christopher Jacob Boström a Swedish philosopher. His ideas dominated Swedish philosophy until the beginning of the twentieth century. He also had a great influence on Swedish cultural life
Mar 23 Ferdinand von Arnim a German architect and watercolour-painter. He was a student of Karl Friedrich Schinkel and Ludwig Persius who mainly worked in Berlin and Potsdam
Mar 24 Maria Amalia of Naples and Sicily French queen as the wife of Louis Philippe I.
Mar 24 Roualeyn George Gordon-Cumming a Scottish traveller and sportsman, known as the "lion hunter". He was the second son of William Gordon Gordon-Cumming, 2nd Baronet
Mar 28 Solomon Foot a United States Senator from Vermont.
Mar 29 John Keble an English churchman and poet, one of the leaders of the Oxford Movement. Keble College, Oxford was named after him
Mar 30 Marie-Nicolas-Antoine Daveluy a French missionary and saint.
Mar 30 Gustave de Beaumont a French magistrate, prison reformer, and travel companion to the famed philosopher and politician Alexis de Tocqueville. While he was very successful in his lifetime, he is often overlooked and his name is synonymous with Tocqueville's achievements
Mar 31 Mikael Nalbandian an Armenian writer who dominated 19th century Armenian literature, author of the Armenian national anthem text.
Apr 5 Thomas Hodgkin an English physician, considered one of the most prominent pathologists of his time and a pioneer in preventive medicine. He is now best known for the first account of Hodgkin's disease, a form of lymphoma and blood disease, in 1832. Hodgkin's work marked the beginning of times when a pathologist was actively involved in the clinical process. He was a contemporary of Thomas Addison and Richard Bright at Guy's Hospital
Apr 12 Peter Hesketh-Fleetwood an English landowner, developer and Member of Parliament, who founded the town of Fleetwood, in Lancashire, England. Born Peter Hesketh, he changed his name by Royal assent to Hesketh-Fleetwood, incorporating the name of his ancestors, and was later created Baronet Fleetwood. Predeceased by an older brother, he inherited estates in west Lancashire in 1824. Inspired by the transport developments of the early 19th century, he decided to bring the railway to the Lancashire coast and develop a holiday resort and port. He hired architect Decimus Burton to design his new town, which he named Fleetwood; construction began in 1836. Hesketh-Fleetwood was instrumental in the formation of the Preston and Wyre Railway Company and with his financial support, a railway line was built between Preston and Fleetwood which opened in 1840
Apr 12 Daniel S. Dickinson a New York politician, most notable as a United States Senator from 1844 to 1851.
Apr 24 Hermann Hupfeld German Orientalist and Biblical commentator. He is known for his historical-critical studies of the Old Testament
Apr 25 Józef Bonawentura Załuski a Polish General Officer and diarist, and participant in the Napoleonic Wars of 1808–1814.
Apr 26 Hermann Goldschmidt a German-French astronomer and painter who spent much of his life in France. He started out as a painter, but after attending a lecture by the famous French astronomer Urbain Le Verrier turned to astronomy. His discovery of the asteroid Lutetia in 1852 was followed by further findings and by 1861 Goldschmidt had discovered 14 asteroids. He received the Gold Medal of the Royal Astronomical Society in 1861 for having discovered more asteroids than any other person up to that time. He died from complications of diabetes
May 8 Ferdinand Cohen-Blind a German student who attempted to assassinate Otto von Bismarck, then the Minister President of Prussia. He committed suicide shortly after his arrest
May 10 Ivan Vahylevych b 2 September 1811 in the village of Yasen , Stanislawow powiat, Kingdom of Galicia and Lodomeria, d 10 May 1866 in Lemberg. Romantic poet, philologist, and ethnographer of the Galician revival
May 13 Nikolai Brashman a Russian mathematician of Austrian origin. He was a student of Joseph Johann Littrow, and the advisor of Pafnuty Chebyshev and August Davidov
May 15 William Henry Harvey an Irish botanist who specialised in algae.
May 16 Jean Baptiste Charbonneau an American explorer, guide, fur trapper trader, military scout during the Mexican-American War, alcalde of Mission San Luis Rey de Francia, and a gold prospector and hotel operator in Northern California. He spoke French and English, and learned German and Spanish during his six years in Europe from 1823 to 1829. He also spoke Shoshone and other western American Indian languages, which he picked up during his years of trapping and guiding