Died on June 20

537 Pope Silverius Pope from 8 June 536 to his deposition in 537, a few months before his death.
840 Louis the Pious the King of Aquitaine from 781. He was also King of the Franks and co-Emperor with his father, Charlemagne, from 813
930 Hucbald a Frankish music theorist, composer, teacher, writer, hagiographer, and Benedictine monk. Deeply influenced by Boethius' De Institutione Musica, he wrote the first systematic work on western music theory, aiming at reconciling through many notated examples ancient Greek music theory and the contemporary practice of the more recent so-called 'Gregorian chant'
1244 Yelü Chucai a statesman of Khitan ethnicity with royal family lineage to the Liao Dynasty, who became a vigorous adviser and administrator of the early Mongol Empire in the Confucian tradition. He was the first of Genghis Khan's retainers to formulate policy during the Mongol conquests, and he also introduced many administrative reforms in North China during the reign of Genghis Khan and his successor Ögedei
1351 Margareta Ebner considered part of the tradition of German mysticism and a visionary. She seems to have been a niece of Christina Ebner, another Dominican nun and member of the group of mystics in the region at that time. She has been beatified by the Catholic Church
1405 Alexander Stewart Earl of Buchan the third surviving son of King Robert II of Scotland and youngest by his first wife, Elizabeth Mure of Rowallan. He was the first Earl of Buchan since John Comyn, from 1382 until his death. Alexander married the widowed Euphemia I, Countess of Ross, but they had no children although he did have a large family by his longtime mistress, Mairead inghean Eachann. Alexander was Justiciar of Scotia for a time, but not an effective one. He held large territories in the north of Scotland before eventually losing a large part of them. Alexander is remembered for his destruction of the royal burgh of Elgin and its cathedral. His nickname was earned due to his notorious cruelty and rapacity but there is no proof that it was used during his lifetime
1483 Fernando II Duke of Braganza the 3rd Duke of Braganza and the 1st Duke of Guimarães, among other titles. He is known for being executed for treason against the King
1488 García Álvarez de Toledo 1st Duke of Alba a Spanish nobleman, military leader and politician.
1597 Willem Barentsz a Dutch navigator, cartographer, and Arctic explorer. He went on three expeditions to the far north in search for a Northeast passage. During his third expedition, the crew was stranded on Nova Zembla for almost a year. Barentsz died on the return voyage in 1597. In the 19th century, the Barents Sea was named after him
1605 Feodor II of Russia a tsar of Russia during the Time of Troubles. He was born in Moscow, the son and successor to Boris Godunov. His mother Maria Grigorievna Skuratova-Belskaya was one of the daughters of Malyuta Skuratov, the infamous favourite of Ivan the Terrible
1663 Catherine Henriette de Bourbon an illegitimate daughter of King Henry IV of France and his long-term maîtresse en titre Gabrielle d'Estrées. She was declared legitimate on 17 November 1596 at the Abbey of Ouen in Rouen and married into the Princely House of Guise
1668 Heinrich Roth a missionary and pioneering Sanskrit scholar.
1684 Thomas Armstrong (politician) an army officer and Member of Parliament executed for treason. His father, Colonel Sir Thomas Armstrong fought in the 30 Years War in the Netherlands, was a royalist soldier during the English Civil War, and was twice imprisoned in the Tower of London by Oliver Cromwell during the Commonwealth
1705 Michiel van Musscher a Dutch Golden Age painter.
1717 Anna Leszczyńska (1699–1717) a Polish noblewoman from the Leszczyński family and later Royal Princess of Poland when her father became King in 1704.
1739 Edmond Martène a French Benedictine historian and liturgist.
1776 Benjamin Huntsman an English inventor and manufacturer of cast or crucible steel.
1787 Carl Friedrich Abel a German composer of the Classical era. He was a renowned player of the viola da gamba, and composed important music for that instrument
1788 Sydir Bily Zaporozhian Kosh otaman.
1794 Félix Vicq-d'Azyr a French physician and anatomist, the originator of comparative anatomy and discoverer of the theory of homology in biology.
1800 Abraham Gotthelf Kästner a German mathematician and epigrammatist.
1802 Gaetano Gandolfi an Italian painter of the late Baroque and early Neoclassic period, active in Bologna.
1810 Axel von Fersen the Younger a Swedish count, Marshal of the Realm of Sweden, a Lieutenant General in the Royal Swedish Army, one of the Lords of the Realm, aide-de-camp to Rochambeau in the American Revolutionary War, diplomat and statesman. He is famous in history as the friend of Queen Marie Antoinette of France, and because of his death at the hands of a Stockholm lynch mob
1815 George Montagu (naturalist) an English naturalist. He was known for his pioneering Ornithological Dictionary of 1802, which for the first time accurately defined the status of Britain's birds. He is remembered today for species such as the Montagu's Harrier, named for him
1815 Guillaume Philibert Duhesme a French general during the Napoleonic Wars.
1817 Marie-Gabriel-Florent-Auguste de Choiseul-Gouffier a member of the Académie française and the Choiseul-Gouffier family, French ambassador to the Ottoman Empire from 1784 until the fall of the French monarchy and a scholar of ancient Greece.
1818 Hedvig Elisabeth Charlotte of Holstein-Gottorp Queen of Sweden and Norway as the wife of King Charles XIII and She was also a famed diarist, memoirist and witticist. She is generally known in Sweden by her full pen name in Swedish , though her official name as queen was Charlotte
1820 Manuel Belgrano an Argentine economist, lawyer, politician, and military leader. He took part in the Argentine Wars of Independence and created the Flag of Argentina. He is regarded as one of the main Libertadores of the country
1836 Emmanuel Joseph Sieyès a French Roman Catholic abbé, clergyman and political writer. He was one of the chief political theorists of the French Revolution, and also played a prominent role in the French Consulate and First French Empire. His 1789 pamphlet What is the Third Estate? became the de facto manifesto of the Revolution, helping to transform the Estates-General into the National Assembly in June 1789. In 1799, he was among the instigators of the coup d'état of 18 Brumaire , which brought Napoleon Bonaparte to power. He also coined the term "sociologie" in an unpublished manuscript, and made significant theoretical contributions to the nascent social sciences
1837 William IV of the United Kingdom King of the United Kingdom of Great Britain and Ireland and of Hanover from 26 June 1830 until his death. William, the third son of George III and younger brother and successor to George IV, was the last king and penultimate monarch of Britain's House of Hanover
1840 Pierre Claude François Daunou a French statesman and historian of the French Revolution and Empire.
1842 Michael Umlauf an Austrian composer, conductor, and violinist. His father, Ignaz Umlauf, was also a notable composer. His sister Elisabeth Hölzel had a career as a contralto and her son Gustav Hölzel was an important bass-baritone
1847 Juan Larrea (politician) a Spanish businessman and politician in Buenos Aires during the early nineteenth century. He headed a military unit during the second British invasion of the Río de la Plata, and worked at the Buenos Aires Cabildo. He took part in the ill-fated Mutiny of Álzaga. Larrea and Domingo Matheu were the only two Spanish-born members of the Primera Junta, the first national government of Argentina
1849 James Clarence Mangan an Irish poet.
1854 Caroline of Hesse-Homburg the daughter of Frederick V, Landgrave of Hesse-Homburg and his wife, Caroline of Hesse-Darmstadt. She married in 1791 to Louis Frederick II, Prince of Schwarzburg-Rudolstadt. They had five children together. Caroline died on 20 June 1854
1856 Florestan I Prince of Monaco Prince of Monaco and Duke of Valentinois from 2 October 1841 until his death. He was born Tancrède Florestan Roger Louis Grimaldi the second son of Prince Honoré IV and Louise d'Aumont Mazarin, and succeeded to the throne on the death of his brother, Honoré V
1863 Joseph Russegger an Austrian geologist who was a native of Salzburg.
1866 Ludwig zu Sayn-Wittgenstein-Berleburg a Russian aristocrat of German descent. Among his properties were the famed Mir Castle Complex and Verkiai Palace
1869 Hijikata Toshizō the vice-commander of Shinsengumi, a great swordsman and a talented Japanese military leader who resisted the Meiji Restoration.
1870 Jules de Goncourt a French writer, who published books together with his brother Edmond. Jules was born and died in Paris. His death at the age of 39 was at Auteuil-Neuilly-Passy of a stroke brought on by syphilis
1872 Élie Frédéric Forey a Marshal of France.
1874 John Ruggles an American politician from the U.S. state of Maine. He served in several important state legislative and judicial positions before serving in the U.S. Senate
1874 Carl Heinrich Edmund von Berg a German forestry scientist.
1875 Joseph Meek a trapper, law enforcement official, and politician in the Oregon Country and later Oregon Territory of the United States. A pioneer involved in the fur trade before settling in the Tualatin Valley, Meek would play a prominent role at the Champoeg Meetings of 1843 where he was elected as a sheriff. Later he served in the Provisional Legislature of Oregon before being selected as the United States Marshal for the Oregon Territory
1875 Wilhelm Bauer a Bavarian inventor and engineer who built several hand-powered submarines.
1877 Catesby ap Roger Jones an officer in the U.S. Navy who became a commander in the Confederate Navy during the American Civil War. He assumed command of CSS Virginia during the Battle of Hampton Roads and engaged the USS Monitor in that world famous battle of the two iron clads
1883 Gustave Aimard the author of numerous books about Latin America.
1883 John Colenso William Colenso , first Church of England Bishop of Natal, mathematician, theologian, Biblical scholar and social activist.
1884 Václav Beneš Třebízský a popular Czech novelist. He is the author of numerous historical novels and children's stories. His most novel novel is arguably In the Early Evening of the Five-petaled Roses
1888 Princess Marie of Prussia (1855–1888) a princess of the House of Hohenzollern. She was the daughter of Prince Frederick Charles of Prussia and later became second wife of Prince Henry of the Netherlands then the first wife of Prince Albert of Saxe-Altenburg. She was also the great-niece of Wilhelm I, German Emperor