Born on April 20

1492 Pietro Aretino an Italian author, playwright, poet, satirist, and blackmailer, who wielded immense influence on contemporary art and politics and invented modern literate pornography.
1494 Johannes Agricola a German Protestant reformer. He was a follower and friend of Martin Luther, who became his antagonist in the matter of the binding obligation of the law on Christians
1544 Renata of Lorraine Duchess of Bavaria from 1568 to 1597.
1586 Rose of Lima Saint Rose of Lima, T.O.S.D. was a Spanish colonist in Lima, Peru, who became known for both her life of severe asceticism and her care of the needy of the city through her own private efforts. A lay member of the Dominican Order, she was the first person born in the Americas to be canonized by the Catholic Church
1589 John Casimir Count Palatine of Kleeburg the son of John I, Count Palatine of Zweibrücken and his wife, Duchess Magdalene of Jülich-Cleves-Berg and was the founder of a branch of Wittelsbach Counts Palatine often called the Swedish line, because it gave rise to three subsequent kings of Sweden, but more commonly known as the Kleeburg line.
1633 Emperor Go-Kōmyō the 110th emperor of Japan, according to the traditional order of succession.
1646 Charles Plumier named. Plumier is considered one of the most important of the botanical explorers of his time. He made three botanizing expeditions to the West Indies, which resulted in a massive work Nova Plantarum Americanarum Genera and was appointed botanist to king Louis XIV of France
1650 William Bedloe an English fraudster and informer.
1650 Felice Boselli an Italian painter of the Baroque period, active mainly in Piacenza. He was not the pupil of Giuseppe Nuvolone, the son of Panfilo, as some have stated, but instead of Giuseppe's brother, Michelangelo Nuvolone. In that studio, he met the still-life painter Angelo Maria Crivelli also called il Crivellone, who became influential in his style. He is known for still-life paintings of live and dead game, including animals, birds, and fish
1690 Gabriel of Belostok a child saint in the Russian Orthodox Church. The legend of his death describes a ritual murder which has been described as a blood libel. His feast day is held on April 20 / May 3
1723 Cornelius Harnett an American merchant, farmer, and statesman from Wilmington, North Carolina. He was a leading American Revolutionary in the Cape Fear region, and a delegate for North Carolina in the Continental Congress from 1777 to 1779
1726 Joseph de Ferraris an Austrian general and cartographer.
1739 Friedrich Freiherr von Hotze a Swiss-born field marshal in the Austrian army during the French Revolutionary Wars, campaigned in the Rhineland during the War of the First Coalition and in Switzerland in the War of the Second Coalition, notably at Battle of Winterthur in late May 1799, and the First Battle of Zürich in early June 1799. He was killed at the Second Battle of Zürich
1745 Philippe Pinel a French physician who was instrumental in the development of a more humane psychological approach to the custody and care of psychiatric patients, referred to today as moral therapy. He also made notable contributions to the classification of mental disorders and has been described by some as "the father of modern psychiatry". An 1809 description of a case that Pinel recorded in the second edition of a textbook on insanity is regarded as the earliest evidence for the existence of the form of mental disorder known as dementia praecox or schizophrenia in the 20th century by some although Kraeplin is accredited with its first conceptualisation
1748 Georg Michael Telemann a German composer and theologian.
1764 Rudolph Ackermann an Anglo-German bookseller, inventor, lithographer, publisher and businessman.
1767 Karl Julius Weber a German writer.
1771 Népomucène Lemercier ].
1788 Spyridon Trikoupis a Greek statesman, diplomat, author and orator. He was the first Prime Minister of Greece and member of provisional governments of Greece since 1826
1788 Juraj Haulik a Croatian cardinal in the Roman Catholic Church of Slovak ethnicity and the first archbishop of Zagreb. He was also acting ban of Croatia for two separate terms
1796 Francis Baring 1st Baron Northbrook a British Whig politician who served in the governments of Lord Melbourne and Lord John Russell.
1798 William Edmond Logan a Scottish-Canadian geologist.
1800 Heinrich Klee a German theologian and Biblical exegete who argued against liberal and Rationalist currents in Catholic thought.
1805 Franz Xaver Winterhalter a German painter and lithographer, known for his portraits of royalty in the mid-nineteenth century. His name has become associated with fashionable court portraiture. Among his best known works are Empress Eugénie Surrounded by her Ladies in Waiting and the portraits he made of Empress Elisabeth of Austria
1807 Wincenty Pol a Polish poet and geographer.
1807 Aloysius Bertrand a French Romantic poet, playwright and journalist. He is famous for having introduced prose poetry in French literature, and is considered a forerunner of the Symbolist movement. His masterpiece is the collection of prose poems Gaspard de la Nuit, that was published posthumously in 1842 and had three of its poems famously adapted to a homonymous piano suite by Maurice Ravel in 1908
1808 Napoleon III the first President of the French Second Republic and, as Napoleon III, the Emperor of the Second French Empire. He was the nephew and heir of Napoleon He was the first President of France to be elected by a direct popular vote. However, when he was blocked by the Constitution and Parliament from running for a second term, he organized a coup d'état in 1851, and then took the throne as Napoleon III on 2 December 1852, the forty-eighth anniversary of Napoleon I's coronation
1809 James David Forbes a Scottish physicist and glaciologist who worked extensively on the conduction of heat and seismology. Forbes was a resident of Edinburgh for most of his life, educated at the University and a professor there from 1833 until he became principal of the United College of Andrews in 1859
1812 Friedrich von Sallet a German writer, most notable for his political and religion-critiquing poems.
1813 Henry Theodore Tuckerman an American writer, essayist and critic.
1814 Filippo de Filippi an Italian doctor, traveler and zoologist.
1815 Jørgen Matthias Christian Schiødte a Danish entomologist. He was Professor at University of Copenhagen Zoological Museum
1816 Bogoslav Šulek a Croatian philologist, historian and lexicographer. He was very influential in creating Croatian terminology in the areas of social and natural sciences, technology and civilization
1818 Heinrich Göbel a precision mechanic and inventor. He emigrated in 1848 to New York City and lived there until his death. In 1865 he received the American citizenship
1823 Johannes Falke a German historian.
1823 Jesse L. Reno a career United States Army officer who served in the Mexican–American War, the Utah War, the western frontier, and as a Union General during the American Civil War. Known as a "soldier's soldier" who fought alongside his men, he was killed while commanding a corps at Fox's Gap during the Battle of South Mountain. Reno County, Kansas, El Reno, Oklahoma, Reno, Nevada, and Fort Reno in Washington, D.C. were named after him
1827 John Gibbon a career United States Army officer who fought in the American Civil War and the Indian Wars.
1836 Eli Whitney Blake Jr. an American scientist. His father and namesake was an inventor and partner of the Blake Brothers manufacturing firm. The origin of the name Eli Whitney comes from Blake senior's uncle Eli Whitney, who changed the face of the cotton industry with the invention of the cotton gin
1837 Georg Ossian Sars a Norwegian marine and freshwater biologist.
1839 Carol I of Romania the ruler of Romania from 1866 to 1914. He was elected Ruling Prince of the Romanian United Principalities on 20 April 1866 after the overthrow of Alexandru Ioan Cuza by a palace coup. After the defeat of the Ottoman Empire in the Russo-Turkish War, he declared Romania a sovereign nation. He was proclaimed King of Romania on 26 March 1881. He was the first ruler of the Hohenzollern-Sigmaringen dynasty, which ruled the country until the proclamation of a republic in 1947
1839 Alexandr Alexandrovich Fischer von Waldheim a Russian Botanist. He was a director of the Saint Petersburg Botanical Garden. He was the son of Alexandr Grigorievich Fischer von Waldheim and the grandson of Gotthelf Fischer von Waldheim
1840 Odilon Redon a French symbolist painter, printmaker, draughtsman and pastellist.
1842 John Murphy Farley an Irish-born prelate of the Roman Catholic Church. He served as Archbishop of New York from 1902 until his death in 1918, and created a cardinal in 1911
1846 Vyacheslav von Plehve the director of Imperial Russia's police and later Minister of the Interior.
1846 Alexandre de Serpa Pinto a Portuguese explorer of southern Africa and a colonial administrator.
1848 Kurd Lasswitz a German author, scientist, and philosopher. He has been called "the father of German science fiction". He sometimes used the pseudonym Velatus
1849 Nikolai Nebogatov a Rear-Admiral in the Imperial Russian Navy, noted for his role in the final stages of the Russo-Japanese War of 1904-1905.
1850 Daniel Chester French best known for his monumental work, the statue of Abraham Lincoln in the Lincoln Memorial, Washington, D.C.
1850 Jean-François Raffaëlli a French realist painter, sculptor, and printmaker who exhibited with the Impressionists. He was also active as an actor and writer
1851 Young Tom Morris one of the pioneers of professional golf, and was the first young prodigy in golf history. He won four consecutive titles in the Open Championship, an unmatched feat, and did this by the age of 21