Historical Events In September - 23
Tuesday, 16 December 2025
0079 Pope Linus on this day in history. 

0775 On September - 23 constantine V Copronymus, Emperor of Byzantium (720-75), dies 

0918 On this day in history the German king Conrad I dies after a 7-year reign in which he has warred with the Danes, the Slavs, the Magyars, and the duke of Saxony 

0918 Koenraad I, German duke/king (911-18), dies at 42 on September - 23. 

0951 Otto I the Great becomes king of Italy on this day in history. 

0965 On September - 23 aboe a-Taia-H al-Moetanabbi, Arabic royal poet (Diwan), murdered 

1122 The Holy Roman Emperor Henry V renounces the right of investiture with ring and crozier in the September 23 Concordat of Worms, recognizes freedom of election of the clergy, and promises to restore all church property on September - 23. 

1122 Concord of Worms on this day in history. 

1408 On this day in history battle of Othee 

1459 Battle of Blore Heath, the first major battle of the English Wars of the Roses, is fought at Blore Heath in Staffordshire on September - 23. 

1513 King Henry III & Emperor Maximilian conquer Doornik on this day in history. 

1541 On this day in history philippus A Paracelsus, Swiss physician/alchemist, dies at 47 

1555 Louise de Coligny, French 4th wife of Willem of Orange on this day in history. 

1561 King Philip II of Spain forbids Spanish settlements in Florida on September - 23. 

1591 On this day in history michael Lohr, composer 

1596 Joan Blaeu, cartographer/publisher on this day in history. 

1605 On this day in history daniel von Czepko, German poet 

1605 Pontus de Tyard, French poet on September - 23. 

1624 On September - 23 willem Pietersz Buytewech, painter/etcher, dies at about 32 

1641 On this day in history adrian "Aart" van Wijck, theologist (against jansenisme) 

1642 On September - 23 harvard College in Cambridge, Mass, 1st commencement 

1642 Giovanni Maria Bononcini, composer on this day in history. 

1666 On September - 23 princess Maria of Orange-Nassau marries Mauritius earl of Simmeren 

1684 Johann Theodor Romhild, composer on September - 23. 

1694 Francesco Passarini, composer, dies at 57 on September - 23. 

1700 Nicolaus Adam Strungk, composer, dies at 59 on September - 23. 

1703 On this day in history jean-Marie Leclair, composer 

1712 On September - 23 ferdinand VI, the wise, King of Spain (1746-59) 

1719 Liechtenstein declares independence from German empire on this day in history. 

1738 Hermannus Boerhaave, medical/botanist, dies at 69 on this day in history. 

1739 Russia & Turkey sign Peace of Belgrade on September - 23. 

1745 John Sevier, Tennessee, indian fighter (Gov/Rep-Tn) on September - 23. 

1746 On September - 23 jacob Gilles appointed Dutch pension advisor 

1768 On this day in history william Wallace, Scottish mathematician (Rights of Wallace) 

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