Died on August 15

423 Honorius (emperor) Western Roman Emperor from 395 to 423. He was the younger son of emperor Theodosius I and his first wife Aelia Flaccilla, and brother of Arcadius, who was the Eastern Emperor from 395 until his death in 408
465 Libius Severus Western Roman Emperor from November 19, 461 to his death.
978 Li Yu (Southern Tang) the third ruler of the Southern Tang state during imperial China's Five Dynasties and Ten Kingdoms period. He reigned from 961 until 976, when he was captured by the invading Song Dynasty armies which annexed his kingdom. He died by poison on orders of Emperor Taizong of Song after 2 years essentially as an exiled prisoner
1038 Stephen I of Hungary the last Grand Prince of the Hungarians between 997 and 1000 or 1001, and the first King of Hungary from 1000 or 1001 until his death in 1038. The year of his birth is uncertain, but many details of his life suggest that he was born in or after 975 in Esztergom. At his birth, he was given the pagan name Vajk. The date of his baptism is unknown. He was the only son of Grand Prince Géza and his wife, Sarolt, who was descended from the prominent family of the gyulas. Although both of his parents were baptized, Stephen was the first member of his family to become a devout Christian. He married Gisela of Bavaria, a scion of the imperial Ottonian dynasty
1057 Macbeth King of Scotland King of the Scots from 1040 until his death. He is best known as the subject of William Shakespeare's tragedy Macbeth and the many works it has inspired, although the play presents a highly inaccurate picture of his reign and personality
1064 Ibn Hazm an Andalusian polymath born in Córdoba, present-day Spain. He was a leading proponent and codifier of the Zahiri school of Islamic thought, and produced a reported 400 works of which only 40 still survive, covering a range of topics such as Islamic jurisprudence, history, ethics, comparative religion, and theology, as well as The Ring of the Dove, on the art of love. The Encyclopaedia of Islam refers to him as having been one of the leading thinkers of the Muslim world, and he is widely acknowledged as the father of comparative religious studies
1118 Alexios I Komnenos Byzantine emperor from 1081 to 1118. Although he was not the founder of the Komnenian dynasty, it was during his reign that the Komnenos family came to full power. Inheriting a collapsing empire and faced with constant warfare during his reign against both the Seljuq Turks in Asia Minor and the Normans in the western Balkans, Alexios was able to halt the Byzantine decline and begin the military, financial, and territorial recovery known as the Komnenian restoration. His appeals to Western Europe for help against the Turks were also the catalyst that likely contributed to the convoking of the Crusades
1196 Conrad II Duke of Swabia duke of Swabia from 1191 to his death and Duke of Rothenburg. He was the fourth son of Frederick III Barbarossa and Beatrice I, Countess of Burgundy, and brother of Henry VI, Holy Roman Emperor
1257 Hyacinth of Poland educated in Paris and Bologna. A Doctor of Sacred Studies and a secular priest, he worked to reform women's monasteries in his native Poland
1274 Robert de Sorbon a French theologian, the chaplain of Louis IX of France, and founder of the Sorbonne college in Paris.
1279 Albert I Duke of Brunswick-Lüneburg Duke of Brunswick-Lüneburg from 1252 and the first ruler of the newly created Principality of Brunswick-Wolfenbüttel from 1269 until his death.
1328 Yesün Temür Khan Emperor Taiding of Yuan a great-grandson of Kublai Khan and ruled as Emperor of the Yuan Dynasty from 1323 to 1328. He is regarded as the 10th Khagan of the Mongols in Mongolia. In Chinese, Yesün Temür Khan, who was very fond of the traditional ways of the Mongols, is known as the Emperor Taiding from his era's name. His name means "nine iron Khan" in the Mongolian language
1342 Peter II of Sicily crowned King of Sicily in 1321 and gained full sovereignty when his father died in 1337.
1369 Philippa of Hainault Queen of England as the wife of King Edward III. Edward, Duke of Guyenne, her future husband, promised in 1326 to marry her within the following two years. She was married to Edward, first by proxy, when Edward dispatched the Bishop of Coventry "to marry her in his name" in Valenciennes in October 1327. The marriage was celebrated formally in York Minster on 24 January 1328, some months after Edward's accession to the throne of England. In August 1328, he also fixed his wife's dower
1382 Kęstutis monarch of medieval Lithuania. He was the Duke of Trakai and governed the Grand Duchy of Lithuania, 1342–82, together with his brother Algirdas , and with his nephew Jogaila. He ruled over the Lithuanians and Ruthenians
1407 Robert Knolles an important English knight of the Hundred Years' War, who, operating with the tacit support of the Crown, succeeded in taking the only two major French cities, other than Calais and Poitiers, to fall to Edward III. His methods, however, earned him infamy as a freebooter and a ravager: the ruined gables of burned buildings came to be known as "Knolly's mitres"
1429 Çandarlı Ibrahim Pasha the Elder an Ottoman statesman who served as Grand Vizier of the Ottoman Empire under Murad II from 1421 to 1429.
1452 William Duke of Opava a member of Opava branch of the Bohemian Přemyslid dynasty. He was Duke of Opava from 1433 to 1452 and Duke of Münsterberg from 1443 to 1452
1496 Isabella of Portugal Queen of Castile Queen consort of Castile and León. She was the mother of Queen Isabella I "the Catholic"
1501 Constantine Lascaris a Greek scholar and grammarian, one of the promoters of the revival of Greek learning in the Italian peninsula, born at Constantinople.
1528 Odet of Foix Viscount of Lautrec a French military leader. He gained the reputation of a gallant and able soldier, but this scarcely seems to be justified by the facts, although he was always badly used by fortune
1552 Hermann of Wied the Archbishop-Elector of Cologne from 1515 to 1546.
1568 Stanislaus Kostka a Polish novice of the Society of Jesus. In the Catholic Church he is venerated as Saint Stanislaus Kostka
1586 Elizabeth of Denmark Duchess of Mecklenburg Danish princess and a Duchess of Mecklenburg-Schwerin and later of Mecklenburg-Güstrow through marriage. She was the elder daughter of King Frederick I of Denmark and his second spouse Sophie of Pomerania
1594 Thomas Kyd an English dramatist, the author of The Spanish Tragedy, and one of the most important figures in the development of Elizabethan drama.
1621 John Barclay (poet) a Scottish writer, satirist and neo-Latin poet.
1666 Johann Adam Schall von Bell a German Jesuit and astronomer. He spent most of his life as a missionary in China and became an adviser to the Shunzhi Emperor of the Qing dynasty
1714 Constantin Brâncoveanu Prince of Wallachia between 1688 and 1714.
1728 Marin Marais a French composer and viol player. He studied composition with Jean-Baptiste Lully, often conducting his operas, and with master of the bass viol Monsieur de Sainte-Colombe for six months. He was hired as a musician in 1676 to the royal court of Versailles. He did quite well as court musician, and in 1679 was appointed ordinaire de la chambre du roy pour la viole, a title he kept until 1725
1758 Pierre Bouguer a French mathematician, geophysicist, geodesist, and astronomer. He is also known as "the father of naval architecture"
1767 Frederick Michael Count Palatine of Zweibrücken a member of the Wittelsbach dynasty. He was the son of Christian III of Palatinate-Zweibrücken and Caroline of Nassau-Saarbrücken and a member of the House of Palatinate-Zweibrücken-Birkenfeld, a branch of the House of Wittelsbach. He was the father of the Bavarian King Maximilian I Joseph
1786 Thomas Tyrwhitt an English classical scholar and critic.
1798 Edward Waring an English mathematician who was born in Old Heath , Shropshire, England and died in Pontesbury, Shropshire, England. He entered Magdalene College, Cambridge as a sizar and became Senior wrangler in 1757. He was elected a Fellow of Magdalene and in 1760 Lucasian Professor of Mathematics, holding the chair until his death. He made the assertion known as Waring's problem without proof in his writings Meditationes Algebraicae. Waring was elected a Fellow of the Royal Society in 1763 and awarded the Copley Medal in 1784
1799 Giuseppe Parini an Italian Enlightenment satirist and poet of the neoclassic period.
1799 Barthélemy Catherine Joubert a French general. He joined the royal French army in 1784 and rose rapidly in rank during the French Revolutionary Wars. Napoleon Bonaparte recognized his talents and gave him increased responsibilities. Joubert was killed while commanding the French army at the Battle of Novi in 1799
1815 Eugène Louis Melchior Patrin a French mineralogist and naturalist.
1824 Carl Arnold Kortum a German physician, but best known for his writing and poetry.
1838 John Kirby Allen a co-founder of the city of Houston and a former member of the Republic of Texas House of Representatives. He was born in Canaseraga Village, New York. He never married. He died of congestive fever on August 15, 1838, and was buried at Founders Memorial Cemetery in Houston
1841 Elizabeth Gould (illustrator) a British artist and illustrator, married to naturalist John Gould. She produced many illustrations for his ornithological works
1851 Giovanni Inghirami an Italian astronomer, and a Piarist religious. There is a valley on the moon named after him as well as a crater
1852 Johan Gadolin a Finnish chemist, physicist and mineralogist. Gadolin discovered the chemical element yttrium. He is also considered the founder of Finnish chemistry research, as the second holder of the Chair of Chemistry at the Royal Academy of Turku
1854 Thomas Chilton a U.S. Representative from Kentucky, a prominent Baptist clergyman, and the ghost writer of David Crockett's autobiography
1856 Julius von Flotow a German military officer and lichenologist born in the village of Pitzerwitz in the region of Neumark.
1857 Johann Friedrich Naumann a German scientist, engraver, and editor. He is regarded as the founder of scientific ornithology in Europe. He published The Natural History of German Birds and The Eggs of German Birds. His father Johann Andreas Naumann was a naturalist, and his brother Carl Andreas Naumann was also an ornithologist
1859 Nathaniel Claiborne a nineteenth-century politician from Virginia. He was the brother of William Charles Cole Claiborne, the nephew of Thomas Claiborne, the uncle of John Francis Hamtramck Claiborne and the great-great-great granduncle Marie Corinne Morrison Claiborne Boggs and Claiborne de Borda Pell
1860 Princess Juliane of Saxe-Coburg-Saalfeld a German princess of the ducal house of Saxe-Coburg-Saalfeld who became the wife of Grand Duke Constantine Pavlovich of Russia.
1868 Manuel Ezequiel Bruzual a military leader committed to liberal ideas, also in charge of the War and Navy Ministry in 1864, and in 1868 was designated provisional President of Venezuela.
1870 Lovro Toman a Slovene Romantic nationalist revolutionary activist during the Revolution of 1848, known as the person who in Ljubljana, at the Wolf Street 8, raised the Slovene tricolor for the first time in history in response to a German flag raised on top of the Ljubljana Castle. Later he helped founding one of the first Slovene publishing houses, the Slovenska matica. He was a Slovene national conservative politician and member of the Austrian Parliament. Together with Janez Bleiweis and Etbin Henrik Costa, he was part of the leadership of the Old Slovene party
1873 Elias Durand an American pharmacist and botanist.:76. He was born in France
1876 John Frederick Lewis an Orientalist English painter. He specialized in Oriental and Mediterranean scenes and often worked in exquisitely detailed watercolour. He was the son of Frederick Christian Lewis , engraver and landscape-painter