Born in 1798

Jan 6 Marie Dorval a French actress.
Jan 14 Johan Rudolph Thorbecke a Dutch politician and statesman of Liberal signature, one of the most important Dutch politicians of the 19th century.
Jan 15 Thomas Crofton Croker an Irish antiquary.
Jan 19 Auguste Comte a French philosopher. He was a founder of the discipline of sociology and of the doctrine of positivism. He is sometimes regarded as the first philosopher of science in the modern sense of the term
Jan 20 Anson Jones a doctor, businessman, congressman, and the fourth and last President of the Republic of Texas, sometimes called the "Architect of Annexation".
Jan 22 Ciro Menotti an Italian patriot.
Jan 24 Karl Georg Christian von Staudt now called Rothenburg ob der Tauber in Germany. From 1814 he studied in Gymnasium in Ausbach. He attended the University of Göttingen from 1818 to 1822 where he studied with Gauss who was director of the observatory. Staudt provided an ephemeris for the orbits of Mars and the asteroid Pallas. When in 1821 Comet Nicollet-Pons was observed, he provided the elements of its orbit. These accomplishments in astronomy earned him his doctorate from University of Erlangen in 1822
Jan 24 Karl Eduard von Holtei a German poet and actor.
Jan 29 Henry Neele an English poet and literary scholar.
Feb 3 Christian Julius Wilhelm Schiede a German physician and botanist born in Kassel.
Feb 8 Grand Duke Michael Pavlovich of Russia a Russian nobleman, the tenth child and fourth son of Paul I of Russia and Sophie Dorothea of Württemberg. He was born in Petersburg
Feb 11 Alvin Smith (brother of Joseph Smith) the eldest brother of Joseph Smith, Jr., the founder of the Latter Day Saint movement. Alvin took a leading role in helping the Smith family work toward paying their debts and building their home. His death at age 25 resulted in his younger brother Joseph taking more of a leading role in family affairs. A vision claimed by Joseph Smith is said to have included Alvin and played a significant role in the establishment of the Mormon doctrines of redemption of those who die without a knowledge of the gospel and baptism of the dead
Feb 13 Heinrich Alexander von Arnim a Prussian statesman.
Feb 15 Jean Étienne Duby a Swiss clergyman and botanist.
Feb 17 Josef Matěj Navrátil a Czech painter.
Feb 18 José Hilario López a Colombian politician and military officer. He was the President of Colombia between 1849 and 1853
Feb 18 Adalbert von Ladenberg a Prussian politician.
Feb 19 Allan MacNab a Canadian political leader and Premier of the Province of Canada before Canadian Confederation.
Mar 1 Archduchess Clementina of Austria an Archduchess of Austria and Princess of Salerno upon her marriage to Prince Leopold of Bourbon-Two Sicilies, Prince of Salerno.
Mar 10 Pierre Frédéric Sarrus a French mathematician.
Mar 13 Abigail Fillmore First Lady of the United States from 1850 to 1853.
Mar 16 Jacques Jasmin an Occitan poet.
Mar 17 Jacob Ettlinger a German rabbi and author, and one of the leaders of Orthodox Judaism. He is sometimes referred to as the Aruch la-Ner because of his noteworthy publication by that same name
Mar 18 Gustav Rose a German mineralogist who was a native of Berlin. He was a brother of mineralogist Heinrich Rose , the son of pharmacologist Valentin Rose , and the father of noted surgeon Edmund Rose and the classicist Valentin Rose
Mar 25 Christoph Gudermann born in Vienenburg. He was the son of a school teacher and became a teacher himself after studying at the University of Göttingen, where his advisor was Karl Friedrich Gauss. He began his teaching career in Kleve and then transferred to a school in Münster
Mar 31 Carl Gottlieb Peschel a German painter. He was a member of the Nazarene movement
Apr 2 August Heinrich Hoffmann von Fallersleben a German poet. He is best known for writing "Das Lied der Deutschen", its third stanza now being the national anthem of Germany, and a number of popular children's songs
Apr 3 Charles Wilkes an American naval officer and explorer. He led the United States Exploring Expedition, 1838-1842 and commanded the ship in the Trent Affair during the American Civil War. Although credited with several "firsts", his behavior led to two convictions at court-martial
Apr 6 James Beckwourth an American mountain man, fur trader, and explorer. An African American born into slavery in Virginia, he was freed by his father and apprenticed to a blacksmith; later he moved to the American West. As a fur trapper, he lived with the Crow for years. He is credited with the discovery of Beckwourth Pass through the Sierra Nevada Mountains between present-day Reno, Nevada and Portola, California during the California Gold Rush years, and improved the Beckwourth Trail, which thousands of settlers followed to central California
Apr 8 Dionysios Solomos a Greek poet from Zakynthos. He is best known for writing the Hymn to Liberty , of which the first two stanzas, set to music by Nikolaos Mantzaros, became the Greek national anthem in 1865. He was the central figure of the Heptanese School of poetry, and is considered the national poet of Greece—not only because he wrote the national anthem, but also because he contributed to the preservation of earlier poetic tradition and highlighted its usefulness to modern literature. Other notable poems include Ὁ Κρητικός , Ἐλεύθεροι Πολιορκημένοι and others. A characteristic of his work is that no poem except the Hymn to Liberty was completed, and almost nothing was published during his lifetime
Apr 8 Ramón de la Sagra a Galician anarchist, politician, writer and botanist, who founded the world's first anarchist journal, El Porvenir.
Apr 11 Alfred V. du Pont an American chemist and industrialist, who was the eldest son and successor of Eleuthère Irénée du Pont, the founder of the E.I. du Pont de Nemours and Company.
Apr 11 Macedonio Melloni an Italian physicist, notable for demonstrating that radiant heat has similar physical properties to those of light.
Apr 17 Étienne Bobillier a French mathematician.
Apr 18 Antonio Rolla an Italian violin and viola virtuoso and composer.
Apr 19 Franz Joseph Glæser a Czech/Danish composer.
Apr 20 William Edmond Logan a Scottish-Canadian geologist.
Apr 26 Eugène Delacroix a French Romantic artist regarded from the outset of his career as the leader of the French Romantic school. Delacroix's use of expressive brushstrokes and his study of the optical effects of colour profoundly shaped the work of the Impressionists, while his passion for the exotic inspired the artists of the Symbolist movement. A fine lithographer, Delacroix illustrated various works of William Shakespeare, the Scottish writer Walter Scott and the German writer Johann Wolfgang von Goethe
Apr 28 Duncan Forbes (linguist) a Scottish linguist.
Apr 29 George Don a Scottish botanist.
May 6 Aleksander Zawadzki (naturalist) a Polish naturalist, author of flora and fauna lists of the Galicia region and the neighbourhood of Lviv. He was also the first scientist who studied and catalogued the beetles and butterflies of Eastern Galicia
May 10 John Forbes Royle born in Kanpur in 1798. Entering the service of the East India Company as assistant surgeon, he devoted himself to studying botany and geology, and made large collections among the Himalaya Mountains. He also investigated the medical properties of the plants of Hindustan and the history of their uses among the native races. The results of these investigations appeared in an essay On the Antiquity of Hindu Medicine. For nearly ten years he held the post of superintendent of the East India Company's botanic garden in the Himalayas at Saharanpur. In 1837 he was appointed to the professorship of materia medica in King's College London, which he held till 1856. From 1838 onwards be conducted a special department of correspondence, relating to vegetable products, at the East India House, and at the time of his death he had just completed there an extensive and valuable museum of technical products from the East Indies. In 1851 he superintended the Indian department of the Great Exhibition. He died at Acton near London on 2 January 1858
Jun 12 Samuel Cooper (general) a career United States Army officer, serving during the Second Seminole War and the Mexican-American War. Although little-known today, Cooper was also the highest ranking Confederate general during the American Civil War. After the conflict, he remained in Virginia as a farmer
Jun 14 František Palacký a Czech historian and politician, the most influential person of the Czech National Revival, called "Father of the Nation".
Jun 15 Alexander Gorchakov a Russian statesman from the Gorchakov princely family. He has an enduring reputation as one of the most influential and respected diplomats of the nineteenth century. From 1863 to 1883 he was chancellor of the Russian Empire
Jun 22 Ditlev Blunck a Danish painter associated with the Danish Golden Age during the first half of the 19th century.
Jun 26 Wolfgang Menzel born at Waldenburg in Silesia.
Jun 29 Willibald Alexis a German historical novelist.
Jun 29 Giacomo Leopardi an Italian poet, philosopher, essayist and philologist. Although he lived in a secluded town in the ultra-conservative Papal States, he came in touch with the main thoughts of the Enlightenment, and, by his own literary evolution, created a remarkable and renowned poetic work, related to the Romantic era
Jul 8 Carl Heinrich 'Schultzenstein' Schultz a German physician and botanist. The appellation "Schultzenstein" is a reference to his birthplace; this was necessary to distinguish him from his contemporary Carl Heinrich 'Bipontinus' Schultz, also a German botanist