Died on April 6

912 Notker the Stammerer a musician, author, poet, and Benedictine monk at the Abbey of Saint Gall in modern Switzerland. He is commonly accepted to be the "Monk of Saint Gall" who wrote De Carolo Magno, a book of anecdotes about the Emperor Charlemagne
1147 Frederick II Duke of Swabia the second Hohenstaufen duke of Swabia from 1105. He was the eldest son of Frederick I and Agnes
1199 Richard I of England King of England from 6 July 1189 until his death. He also ruled as Duke of Normandy , Duke of Aquitaine, Duke of Gascony, Lord of Cyprus, Count of Poitiers, Count of Anjou, Count of Maine, Count of Nantes, and Overlord of Brittany at various times during the same period. He was the third of five sons of King Henry II of England and Eleanor of Aquitaine. He was known as Richard Cœur de Lion or Richard the Lionheart because of his reputation as a great military leader and warrior. The Muslims called him Melek-Ric or Malek al-Inkitar. He was also known in Occitan as Oc e No , because of his reputation for terseness
1231 William Marshal 2nd Earl of Pembroke a medieval English nobleman and was one of the Magna Carta sureties. He fought during the First Barons' War and was present at the Battle of Lincoln
1250 Hugh XI of Lusignan de Lusignan, Hugh VI of La Marche or Hugh II of Angoulême or Hugues XI & VI & II de Lusignan. He succeeded his mother Isabelle of Angoulême, former queen of England, as Count of Angoulême in 1246. He likewise succeeded his father Hugh X as Count of La Marche in 1249. Hugh XI de Lusignan was uterine half-brother of Henry III of England
1252 Peter of Verona Saint Peter of Verona O.P. also known as Saint Peter Martyr, was a 13th-century Italian Catholic priest. He was a Dominican friar and a celebrated preacher. He served as Inquisitor in Lombardy, was killed by an assassin, and was canonized as a Catholic saint
1284 Peter Count of Perche and Alençon the son of Louis IX of France and Margaret of Provence. He became Count of Alençon in 1269 and in 1284, Count of Blois and Chartres, and Seigneur de Guise in 1272 and 1284. He was also Count of Perche
1362 James I Count of La Marche the son of Louis I, Duke of Bourbon and Mary of Avesnes. He was Count of Ponthieu from 1351 to 1360, and Count of La Marche from 1356 to his death
1399 Christian V Count of Oldenburg the ruling count of Oldenburg from 1368 until 1398. He was born sometime before 1347 to Count Conrad I of Oldenburg and Ingeborg of Brunswick. After his father died in 1368, he ruled Oldenburg jointly with his elder brother Conrad II, and after Conrad II's deaths in 1386, with the latter's son, Maurice II
1490 Matthias Corvinus King of Hungary and Croatia from 1458. After conducting several military campaigns, he was elected King of Bohemia in 1469 and adopted the title Duke of Austria in 1487. He was the son of John Hunyadi, Regent of Hungary, who died in 1456. In 1457, Matthias was imprisoned along with his older brother, Ladislaus Hunyadi on the orders of King Ladislaus V of Hungary. Ladislaus Hunyadi was executed, causing a rebellion that forced King Ladislaus to flee Hungary. After the king died unexpectedly, Matthias's uncle Michael Szilágyi persuaded the Estates to unanimously proclaim Matthias king on 24 January 1458. He began his rule under his uncle's guardianship, but he took control of government within two weeks
1520 Raphael an Italian painter and architect of the High Renaissance. His work is admired for its clarity of form, ease of composition, and visual achievement of the Neoplatonic ideal of human grandeur. Together with Michelangelo and Leonardo da Vinci, he forms the traditional trinity of great masters of that period
1528 Albrecht Dürer a German painter, engraver, printmaker, mathematician, and theorist from Nuremberg. His high-quality woodcuts established his reputation and influence across Europe when he was still in his twenties, and he has been conventionally regarded as the greatest artist of the Northern Renaissance ever since. His vast body of work includes altarpieces, religious works, numerous portraits and self-portraits, and copper engravings. The woodcuts, such as the Apocalypse series , retain a more Gothic flavour than the rest of his work. His well-known prints include the Knight, Death, and the Devil , Saint Jerome in his Study and Melencolia I , which has been the subject of extensive analysis and interpretation. His watercolours also mark him as one of the first European landscape artists, while his ambitious woodcuts revolutionized the potential of that medium
1551 Joachim Vadian a Swiss Humanist and scholar and also mayor and reformer in Gallen.
1571 John Hamilton (archbishop of St Andrews) The Most Rev. John Hamilton , Scottish prelate and politician, was an illegitimate son of James Hamilton, 1st Earl of Arran
1590 Francis Walsingham popularly remembered as her "spymaster".
1593 Henry Barrowe an English Separatist Puritan, executed for his views.
1605 John Stow an English historian and antiquarian best known for his 1598 Survey of London.
1609 Merkelis Giedraitis Bishop of Samogitia from 1576 to 1609. He actively combated Reformation implementing resolutions of Council of Trent in Samogitia
1621 Edward Seymour 1st Earl of Hertford "Lord Hertford" redirects here, for other persons holding that title see Marquess of Hertford.
1641 Domenichino an Italian Baroque painter of the Bolognese School, or Carracci School, of painters.
1655 David Blondel a French Protestant clergyman, historian and classical scholar.
1660 Giovanni Battista Hodierna an Italian astronomer at the court of the Duke of Montechiaro. He compiled a catalog of some 40 entries, including at least 19 real and verifiable nebulous objects that might be confused with comets. The work anticipated Messier's catalogue, but had little impact. Messier seems not to have known of it
1670 Leonora Baroni an Italian singer, theorbist, lutenist, viol player, and composer.
1676 John Winthrop the Younger governor of Connecticut.
1686 Arthur Annesley 1st Earl of Anglesey an Anglo-Irish royalist statesman. After short periods as President of the Council of State and Treasurer of the Navy, he served as Lord Privy Seal between 1673 and 1682 for Charles He succeeded his father as 2nd Viscount Valentia in 1660, and he was created Earl of Anglesey in 1661
1707 Willem van de Velde the Younger a Dutch marine painter.
1732 Count Palatine Francis Louis of Neuburg bishop and archbishop of several dioceses, prince-elector of the Holy Roman Empire, and Hochmeister of the Teutonic Order.
1755 Richard Rawlinson an English clergyman and antiquarian collector of books and manuscripts, which he bequeathed to the Bodleian Library, Oxford.
1759 Johann Gottfried Zinn a German anatomist and botanist member of the Berlin Academy.
1779 Tommaso Traetta an Italian composer.
1790 Louis IX Landgrave of Hesse-Darmstadt the Landgrave of Hesse-Darmstadt from 1768 - 1790. He was a son of Louis VIII, Landgrave of Hesse-Darmstadt, and Charlotte of Hanau-Lichtenberg and Müntzenberg
1795 George Collier an officer of the Royal Navy who saw service during the Seven Years' War, the American War of Independence and the French Revolutionary Wars. As commander of the frigate HMS Rainbow, he was one of the most successful British naval commanders during the opening stages of war with America. He achieved considerable success as one of the senior officers on the North American coast, conducting and organizing several highly effective raids and counter-strikes. He was superseded however, and returned to Britain to play a role in the closing events of the war in European waters, before moving ashore to start a political career. He enjoyed a brief return to service with the resumption of war with France, and achieved flag rank, but died shortly afterwards
1799 Alexander Bezborodko the Grand Chancellor of Russia and chief architect of Catherine the Great's foreign policy after the death of Nikita Panin.
1803 William Hamilton (diplomat) a Scottish diplomat, antiquarian, archaeologist and vulcanologist. After a short period as a Member of Parliament, he served as British Ambassador to the Kingdom of Naples from 1764 to 1800. He studied the volcanoes Vesuvius and Etna, becoming a Fellow of the Royal Society and recipient of the Copley Medal
1816 Christian Leberecht Vogel a German painter, draughtsman and writer on art theory. His pupils included Louise Seidler, and he was the father of the court painter and art professor Carl Christian Vogel
1825 Princess Louise of Saxe-Hildburghausen a member of the House of Saxe-Hildburghausen and a Princess of Saxe-Hildburghausen by birth. Through her marriage to William, Duke of Nassau, Louise was also a member of the House of Nassau-Weilburg and Duchess consort of Nassau. Louise was briefly Princess consort of Nassau-Weilburg in 1816
1829 Niels Henrik Abel a Norwegian mathematician who made pioneering contributions in a variety of fields. His most famous single result is the first complete proof demonstrating the impossibility of solving the general quintic equation in radicals. This question was one of the outstanding open problems of his day, and had been unresolved for 250 years. He was also an innovator in the field of elliptic functions, discoverer of Abelian functions. Despite his achievements, Abel was largely unrecognized during his lifetime; he made his discoveries while living in poverty and died at the age of 26
1833 Adamantios Korais a Greek humanist scholar credited with laying the foundations of Modern Greek literature and a major figure in the Greek Enlightenment. His activities paved the way for the Greek War of Independence and the emergence of a purified form of the Greek language, known as Katharevousa. Encyclopædia Britannica asserts that "his influence on the modern Greek language and culture has been compared to that of Dante on Italian and Martin Luther on German"
1838 José Bonifácio de Andrada a Brazilian statesman, naturalist, professor and poet, born in Santos, São Paulo, then part of the Portuguese Empire. He was one of the most important mentors of Brazilian independence, and his actions were decisive for the success of Emperor Pedro He supported public education, was an abolitionist and suggested that a new national capital be created in Brazil's underdeveloped interior. His career as naturalist was marked by the discovery of four new minerals
1842 Johann Anton André a German composer and music publisher best known for his central place in Mozart research.
1847 Hans Järta a Swedish administrator and revolutionary. He helped overthrow Gustavus IV Adolphus in 1809 and was one of the main drafters of the constitution of Sweden in 1809
1849 Jan Svatopluk Presl a Bohemian natural scientist.
1854 George Newport a prominent English entomologist. He was the first of four children of William Newport , a local wheelwright, and Sarah Gillham
1860 James Kirke Paulding an American writer and, for a time, the United States Secretary of the Navy.
1861 Antonio Alessandrini
1862 Albert Sidney Johnston served as a general in three different armies: the Texian Army, the United States Army, and the Confederate States Army. He saw extensive combat during his military career, fighting actions in the Texas War of Independence, the Mexican-American War, the Utah War, and the American Civil War
1862 Fitz James O'Brien often considered a forerunner of today's science fiction.
1875 Moses Hess a German-French-Jewish philosopher and socialist, and one of the founders of Labor Zionism.
1882 Max Lilienthal a German-born adviser for the reform of Jewish schools in Russia and later a rabbi and proponent of Reform Judaism in the United States.
1882 Friedrich Drake a German sculptor, best known for his huge memorial statues.