Born on March 21

867 Ælla of Northumbria King of Northumbria, England in the middle of the 9th century. Sources on Northumbrian history in this period are limited. Ælla's descent is not known and the dating of his reign is problematic. He is a major character in the saga Ragnarssona þáttr
867 Osberht of Northumbria king of Northumbria in the middle of the 9th century. Sources on Northumbrian history in this period are limited. Osberht's descent is not known and the dating of his reign is problematic
927 Emperor Taizu of Song the founding emperor of imperial China's Song Dynasty, reigning from 960 until his death. A distinguished military general under the Later Zhou, he came to power by staging a coup d'état and forcing the young Emperor Gong of Later Zhou to abdicate power
1227 Charles I of Naples the King of Sicily by conquest from 1266, though he had received it as a papal grant in 1262 and was expelled from the island in the aftermath of the Sicilian Vespers of 1282. Thereafter, he claimed the island, though his power was restricted to the peninsular possessions of the kingdom, with his capital at Naples
1256 Henry I Margrave of Brandenburg-Stendal a member of the House of Ascania and Margrave of Brandenburg-Stendal and Landsberg.
1295 Henry Suso O.P. was a German Dominican friar, who was a noted spiritual writer and mystic. He died in the Free Imperial City of Ulm on 25 January 1366. He was beatified by the Catholic Church in 1831
1364 Sohier Count of Enghien the titular Duke of Athens, and Count of Brienne and Lord of Enghien from 1356 to 1364.
1474 Angela Merici an Italian religious leader and saint. She founded the Order of Ursulines in 1535 in Brescia
1521 Maurice Elector of Saxony Duke and later Elector of Saxony. His clever manipulation of alliances and disputes gained the Albertine branch of the Wettin dynasty extensive lands and the electoral dignity
1522 Mihrimah Sultan the daughter of the Ottoman Sultan Suleiman I and his wife Hürrem Sultan. Mihrimah Sultan's name is also spelled Mihrumah, Mihr-î-Mâh, Mihrî-a-Mâh or Mehr-î-Mâh. She was born in Constantinople. Mehr-î-Mâh means "Sun and Moon"
1527 Hermann Finck a German composer.
1546 Bartholomeus Spranger a Flemish painter, draughtsman, sculptor and etcher who became a painter to the imperial court in Prague. His unique style combining elements of Netherlandish painting and Italian influences, in particular the Roman Mannerists, had an important influence on other artists in Prague and beyond
1551 Maria Anna of Bavaria (1551–1608) the daughter of Albert V, Duke of Bavaria and Anna of Austria , and the wife of Archduke Charles II of Austria.
1588 Egon VIII of Fürstenberg-Heiligenberg Imperial Count of Fürstenberg-Heiligenberg and Bavarian Field-marshal, and an important military leader in the Thirty Years' War.
1595 Ferdinando Ughelli an Italian Cistercian monk and church historian.
1626 Peter of Saint Joseph Betancur a Spanish saint and missionary. Known as the "St. Francis of Assisi of the Americas", he is the first saint native to the Canary Islands, is also considered the first saint of Guatemala and Central America
1665 José Benito de Churriguera a Spanish architect, sculptor and urbanist of the late-Baroque or Rococo style. He was born in Madrid to a Catalan cabinetmaker, gilder and altarpiece joiner, Josep Simó Xoriguera i Elies and to doña Maria de Ocaña, and studied under his father along with two of his brothers
1666 Ogyū Sorai a Japanese Confucian philosopher. He has been described as the most influential such scholar during the Tokugawa period. His primary area of study was in applying the teachings of Confucianism to government and social order. He responded to contemporary economic and political failings in Japan, as well as the culture of mercantilism and the dominance of old institutions that had become weak with extravagance. Sorai rejected the moralism of Song Confucianism and instead looked to the ancient works. He argued that allowing emotions to be expressed was important and nurtured Chinese literature in Japan for this reason. Sorai attracted a large following with his teachings and created the Sorai school, which would become an influential force in further Confucian scholarship in Japan
1672 Stefano Benedetto Pallavicino an Italian poet and opera librettist. He was the son of the composer Carlo Pallavicino
1675 James Douglas (physician) a Scottish physician and anatomist, and Physician Extraordinary to Queen Caroline.
1678 Marie Elisabeth Abbess of Quedlinburg Princess-Abbess of Quedlinburg from 1718 until her death.
1707 Manuel de Amat y Junient a Spanish military officer and colonial administrator. He was the Royal Governor of the Captaincy General of Chile from December 28, 1755 to September 9, 1761, and Viceroy of Peru from October 12, 1761 to July 17, 1776
1713 Francis Lewis a signer of the United States Declaration of Independence as a representative of New York.
1714 Charles Pratt 1st Earl Camden an English lawyer, judge and Whig politician who was first to hold the title of Earl of Camden. As a lawyer and judge he was a leading proponent of civil liberties, championing the rights of the jury, and limiting the powers of the State in leading cases such as Entick v Carrington
1716 Josef Seger a Bohemian organist, composer, and educator. After graduating in philosophy from the Charles University in Prague and studying music under Bohuslav Matěj Černohorský, Jan Zach, and others, Seger became organist of two churches in Prague and remained there until his death
1736 Claude Nicolas Ledoux one of the earliest exponents of French Neoclassical architecture. He used his knowledge of architectural theory to design not only in domestic architecture but town planning; as a consequence of his visionary plan for the Ideal City of Chaux, he became known as a utopian. His greatest works were funded by the French monarchy and came to be perceived as symbols of the Ancien Régime rather than Utopia. The French Revolution hampered his career; much of his work was destroyed in the nineteenth century. In 1804, he published a collection of his designs under the title "Architecture considered in relation to art, morals, and legislation." In this book he took the opportunity of revising his earlier designs, making them more rigorously neoclassical and up to date. This revision has distorted an accurate assessment of his role in the evolution of Neoclassical architecture. His most ambitious work was the uncompleted Royal Saltworks at Arc-et-Senans, an idealistic and visionary town showing many examples of architecture parlante. Conversely his works and commissions also included the more mundane and everyday architecture such as approximately sixty elaborate toll gates in the Wall of the Farmers-General around Paris
1745 Johan Nordahl Brun the poet, dramatist, bishop in Bergen , and politician who contributed significantly to the growth of National Romanticism in Norway, contributing to the growing national consciousness.
1747 Dmitry Pavlutsky a Russian polar explorer and leader of military expeditions in Chukotka, best known for his campaigns against the indigenous Chukchi people.
1752 Louis d'Elbée a French Royalist military leader. He was the second commander in chief of the Royal and Catholic Army formed by Royalist forces of the Vendean insurrection against the Republic and the French Revolution
1757 James Sowerby an English naturalist and illustrator. Contributions to published works, such as A Specimen of the Botany of New Holland or English Botany, include his detailed and appealing plates. The use of vivid colour and accessible texts were intended to reach a widening audience in works of natural history
1763 Jean Paul a German Romantic writer, best known for his humorous novels and stories.
1768 Joseph Fourier a French mathematician and physicist born in Auxerre and best known for initiating the investigation of Fourier series and their applications to problems of heat transfer and vibrations. The Fourier transform and Fourier's Law are also named in his honour. Fourier is also generally credited with the discovery of the greenhouse effect
1769 Gábor Dayka a Hungarian poet.
1779 José Bernardo de Tagle y Portocarrero Marquis of Torre Tagle a Peruvian soldier and politician, occupying the Peruvian presidency from 1823 to 1824.
1788 Boniface de Castellane a Marshal of France.
1793 John Goldie (botanist) a Scottish-born botanist and author. He is credited with recording the existence of fourteen plant species previously unknown to science
1799 Charles Meyer a Prussian pianist and composer active in the early 19th century. He studied with John Field and was the piano teacher of Russian composer Mikhail Glinka and Polish composer Filipina Brzezinska-Szymanowska
1801 Maria Theresa of Austria (1801–1855) born an Archduchess of Austria and Princess of Tuscany. In 1817 she married and became the Queen of Sardinia. She was the wife of King Charles Albert of Sardinia and a daughter of Ferdinand III, Grand Duke of Tuscany, and Luisa of Naples and Sicily. She was named after her double great grandmother Empress Maria Theresa
1806 Benito Juárez a Mexican lawyer and politician of Zapotec origin from Oaxaca who served as the president of Mexico for five terms: 1858–1861 as interim, then 1861–1865, 1865–1867, 1867–1871 and 1871–1872 as constitutional president. He resisted the French occupation of Mexico, overthrew the Second Mexican Empire, restored the Republic, and used liberal measures to modernize the country
1807 Alois Vojtěch Šembera a Czech linguist, historian of literature, writer, journalist and patriot.
1809 Alessandro Gavazzi an Italian preacher and patriot. He at first became a monk , and attached himself to the Barnabites at Naples, where he afterwards acted as professor of rhetoric
1809 Jules Favre a French statesman. After the establishment of the Third Republic in September 1870, he became one of the leaders of the Opportunist Republicans faction
1811 Nathaniel Woodard a priest in the Church of England. He founded 11 schools for the middle classes in England whose aim was to provide education based on "sound principle and sound knowledge, firmly grounded in the Christian faith". His educational principles are promoted today through the Woodard Corporation, a registered charity
1811 Fanny Lewald a German author.
1813 James Strang an American religious leader, politician and self-proclaimed monarch who founded the Church of Jesus Christ of Latter Day Saints , a faction of the Latter Day Saint movement. A major contender for leadership of the Church of Jesus Christ of Latter Day Saints during the 1844 succession crisis, Strang vied with Brigham Young and Sidney Rigdon for control of the main body of Latter Day Saints in Nauvoo, Illinois before his rejection by that group led him to start his own sect. While serving as Prophet, Seer and Revelator of his church—which he claimed to be the sole legitimate continuation of the Church of Christ founded by Joseph Smith, in 1830—Strang reigned for six years as the crowned "king" of an ecclesiastical monarchy that he established on Beaver Island in the US state of Michigan. Building an organization that eventually rivaled Young's in Utah, Strang gained nearly 12,000 adherents prior to his murder in 1856, which brought down his kingdom and all but extinguished his sect
1817 Joseph Poelaert a Belgian architect.
1821 William Milligan a renowned Scottish theologian. He studied at the University of Halle in Germany, and eventually became a professor at the University of Aberdeen. He is best known for his commentary on the Revelation of John. He also wrote two other well-known books that are classics: The Resurrection of our Lord and The Ascension of our Lord
1821 Medo Pucić a writer and politician from Dubrovnik, at the time in the Austro-Hungarian Kingdom of Dalmatia, who was prominent Serbian nationalist, believing that the religion was irrelevant for ethnic affiliation. He is the brother of Niko Pucić
1821 Siegfried Kapper the literary pseudonym of Isaac Salomon Kapper , a Bohemian-born Austrian writer of Jewish origin. Born in Smichow, Kapper studied medicine at Prague University, later completing a Ph.D. at the University of Vienna. Kapper wrote excellent fairy tales and poems, and was one of the leading figures of Czech-Jewish assimilation. Kapper wrote in both German and Czech. He translated Mácha's Máj into German for the first time
1821 Francisco Diez Canseco President of Peru for a brief period during 1872. He was the brother of General Pedro Diez Canseco