Died on April 4

397 Ambrose a bishop of Milan who became one of the most influential ecclesiastical figures of the 4th century. He was consular prefect of Liguria and Emilia, headquartered in Milan, before being made bishop of Milan by popular acclamation in 374. Ambrose was a staunch opponent of Arianism, and has been accused of fostering persecutions both of Arians and of Jews and pagans
636 Isidore of Seville considered, as the 19th-century historian Montalembert put it in an oft-quoted phrase, "The last scholar of the ancient world".
814 Plato of Sakkoudion a Byzantine minor official who became a monk in 759. After refusing the metropolitan see of Nicomedia or the headship of a monastery in Constantinople, in 783 he founded the monastery of Sakkoudion on Mount Olympus in Bithynia, of which he became the first abbot. He is notable, along with his nephew Theodore Stoudites, for his iconodule stance during the Byzantine Iconoclasm and his participation in the Second Council of Nicaea, and to his firm opposition to the second marriage of Emperor Constantine VI to his niece Theodote. He was canonized by the Church, and his feast day is 18 April
896 Pope Formosus Pope from 6 October 891 to his death in 896. His brief reign as Pope was troubled, and his remains were exhumed and put on trial in the notorious Cadaver Synod
1266 John I Margrave of Brandenburg from 1220 until his death Margrave of Brandenburg, jointly with his brother Otto III "the Pious".
1284 Alfonso X of Castile the King of Castile, León and Galicia from 30 May 1252 until his death. During the Imperial election of 1257, a dissident faction chose him to be King of the Romans on 1 April. He renounced his imperial claim in 1275, and in creating an alliance with England in 1254 his claim on Gascony also
1292 Pope Nicholas IV Pope from 22 February 1288 to his death in 1292. He was the first Franciscan to be elected pope
1406 Robert III of Scotland King of Scots from 1390 to his death. He was known primarily as the Earl of Carrick before ascending the throne at age 53. He was the eldest son of Robert II and Elizabeth Mure and was legitimated with the marriage of his parents in 1347
1423 Hugo von Montfort an Austrian minstrel of the Late Middle Ages.
1467 Ludwig von Erlichshausen the 31st Grand Master of the Teutonic Knights, serving from 1449/1450 to 1467.
1497 Elizabeth Tilney Countess of Surrey an English heiress and lady-in-waiting to two queens. She became the first wife of Thomas Howard, Earl of Surrey
1536 Frederick I Margrave of Brandenburg-Ansbach born at Ansbach as the eldest son of the Albert III, Margrave of Brandenburg by his second wife Anna, daughter of Frederick II, Elector of Saxony. His elder half-brother was the Elector Johann Cicero of Brandenburg. Friedrich succeeded his father as Margrave of Ansbach in 1486 and his younger brother as Margrave of Bayreuth in 1495
1538 Elena Glinskaya the second wife of Grand Prince Vasili III and regent of Russia for 5 years.
1544 Ruy López de Villalobos a Spanish explorer who sailed the Pacific from Mexico to establish a permanent foothold for Spain in the East Indies, which was near the Line of Demarcation between Spain and Portugal according to the Treaty of Saragossa in 1529. Villalobos gave the Philippines their name, after calling them Las Islas Filipinas in honor of Philip of Austria, the Prince of Asturias at the time, who later became Philip II of Spain. In 1542 he also discovered a Pacific group of islands, most likely Hawaii, but the Spaniard kept the discovery secret
1545 Walter von Cronberg the 38th Grand Master of the Teutonic Order, serving from 1527 to 1543.
1566 Daniele da Volterra an Italian painter mannerist and sculptor.
1588 Frederick II of Denmark King of Denmark and Norway and duke of Schleswig from 1559 until his death.
1609 Carolus Clusius a Flemish doctor and pioneering botanist, perhaps the most influential of all 16th-century scientific horticulturists.
1617 John Napier a Scottish landowner known as a mathematician, physicist, and astronomer. He was the 8th Laird of Merchistoun
1643 Simon Episcopius a Dutch theologian and Remonstrant who played a significant role at the Synod of Dort in 1618. His name is the Latinized form of his Dutch name Simon Bischop
1661 Alexander Leslie 1st Earl of Leven a Scottish soldier in Dutch, Swedish and Scottish service. Born illegitimate and raised as a foster child, he subsequently advanced to the rank of a Dutch captain, a Swedish Field Marshal, and in Scotland became lord general in command of the Covenanters, privy councillor, captain of Edinburgh Castle, Lord Balgonie and Earl of Leven
1679 Christian Hoffmann von Hoffmannswaldau a German poet of the Baroque era.
1680 Peter Lambeck a German historian and librarian.
1682 Michał Kazimierz Pac a magnate of the Grand Duchy of Lithuania and a member of the Pac family. He was a son of Stefan Pac and a brother of Krzysztof Zygmunt Pac, the Chancellor of Lithuania
1697 Jan de Bray a Dutch Golden Age painter.
1723 Atanazy Miączyński a Polish-Lithuanian nobleman and politician, Treasurer of the Crown Court from 1689. He was voivode of Volhynia from 1713 and Starosta of Krzepice from 1677 and Lutsk from 1681. He was made a Count of the Holy Roman Empire in 1683
1743 Daniel Neal an English historian.
1756 Marie Sophie de Courcillon a French noblewoman and Duchess of Rohan-Rohan as well as Princess of Soubise by marriage. She was the grand daughter of Philippe de Courcillon, better known as the marquis de Dangeau. She was praised for being a cultured woman for the age and held a fashionable salon at the Hôtel de Soubise in Paris. She was painted by Nattier
1761 Théodore Gardelle a Swiss painter and enameller.
1766 John Taylor (classical scholar) born at Shrewsbury in Shropshire.
1774 Oliver Goldsmith best known for his novel The Vicar of Wakefield , his pastoral poem The Deserted Village , and his plays The Good-Natur'd Man and She Stoops to Conquer. He also wrote An History of the Earth and Animated Nature. He is thought to have written the classic children's tale The History of Little Goody Two-Shoes, the source of the phrase "goody two-shoes"
1782 August Aleksander Czartoryski a Polish-Lithuanian noble , magnate, and founder of the family fortune.
1792 James Sykes (Continental Congress) an American lawyer and politician from Dover, in Kent County, Delaware. He served in the Delaware General Assembly and was a Continental Congressman from Delaware
1799 Antoni Barnaba Jabłonowski a Polish noble and political activist.
1803 Georg Rudolf Boehmer a German botanist and physician born in Liegnitz.
1806 Carlo Gozzi an Italian playwright.
1807 Jérôme Lalande a French astronomer and writer.
1809 Vasily Chichagov an admiral in the Russian Navy and an explorer. He was the father of Pavel Chichagov, a Russian admiral during the Napoleonic Wars
1817 André Masséna a French military commander during the Revolutionary and Napoleonic Wars.
1841 William Henry Harrison the ninth President of the United States , an American military officer and politician, and the first president to die in office. He was 68 years, 23 days old when inaugurated, the oldest president to take office until Ronald Reagan in 1981. Harrison died on his 32nd day in office of complications from pneumonia, serving the shortest tenure in United States presidential history. His death sparked a brief constitutional crisis, but its resolution settled many questions about presidential succession left unanswered by the Constitution until the passage of the 25th Amendment in 1967. He was the grandfather of Benjamin Harrison, who was the 23rd President from 1889 to 1893
1846 Solomon Sibley a United States politician and jurist in the Michigan Territory.
1852 Princess Ida of Saxe-Meiningen a German princess. She was the second child and first daughter of George I, Duke of Saxe-Meiningen and Luise Eleonore of Hohenlohe-Langenburg. Her sister Adelaide was the wife of the future William IV of the United Kingdom and Ida herself was one of the godparents of Prince Arthur, Duke of Connaught and Strathearn
1861 John McLean an American jurist and politician who served in the United States Congress, as U.S. Postmaster General, and as a justice on the Ohio and U.S. Supreme Courts. He was often discussed for the Whig and Republican nominations for President
1861 Franz Anton von Kolowrat-Liebsteinsky a Bohemian nobleman and an Austrian statesman.
1863 Ludwig Emil Grimm a German painter, art professor, etcher and copper engraver. His brothers were the well-known folklorists Jacob and Wilhelm Grimm
1864 Joseph Pitty Couthouy an American naval officer, conchologist, and invertebrate palaeontologist. Born in Boston, Massachusetts, he entered the Boston Latin School in 1820. He married Mary Greenwood Wild on 9 March 1832
1868 Eduard van der Nüll an Austrian architect, who was one of the great masters in the historicist style of Vienna's Ringstrasse.
1870 Franz Josef Ruprecht an Austrian-born physician and botanist active in the Russian Empire, where he was known as Frants Ivanovič Ruprekht.
1870 Heinrich Gustav Magnus a notable experimental scientist. His training was mostly in chemistry but his later research was mostly in physics. He spent the great bulk of his career at the University of Berlin, where he is remembered for his laboratory teaching as much as for his original research. He did not use his first given name, and was known throughout his life as Gustav Magnus
1870 Owen Wynne Jones a Welsh clergyman and author.