June 15 » In a decisive battle at Onon River, the Mongol forces of Oljei Temur were decimated by the Chinese armies of the Yongle Emperor.
July 15 » Polish–Lithuanian–Teutonic War: Battle of Grunwald: The allied forces of the Kingdom of Poland and the Grand Duchy of Lithuania defeat the army of the Teutonic Order.
October 9 » The first known mention of the Prague astronomical clock.
November 2 » The Peace of Bicêtre suspends hostilities in the Armagnac–Burgundian Civil War.
May 25 » Henry the Navigator is appointed governor of the Order of Christ.
June 7 » Troops of the Republic of Venice capture Udine, ending the independence of the Patria del Friuli.
July 14 » Battle of Vítkov Hill, decisive victory of Czech Hussite forces commanded by Jan Žižka against Crusade army led by Sigismund, Holy Roman Emperor.
September 1 » A 9.4 MS-strong earthquake shakes Chile's Atacama Region causing tsunamis in Chile as well as Hawaii and Japan.
October 28 » Beijing is officially designated the capital of the Ming dynasty when the Forbidden City is completed.
April 6 » Mehmed II begins his siege of Constantinople (Istanbul), which falls on May 29.
April 20 » Three Genoese galleys and a Byzantine blockade runner fight their way through an Ottoman blockading fleet a few weeks before the fall of Constantinople.
May 29 » Fall of Constantinople: Ottoman armies under Sultan Mehmed II Fatih capture Constantinople after a 53-day siege, ending the Byzantine Empire.
July 17 » Battle of Castillon: The last battle of Hundred Years' War, the French under Jean Bureau defeat the English under the Earl of Shrewsbury, who is killed in the battle in Gascony.
October 19 » Hundred Years' War: Three months after the Battle of Castillon, England loses its last possessions in southern France.
October 28 » Ladislaus the Posthumous is crowned king of Bohemia in Prague.
When copying data from this family tree, please include a reference to the origin: Brian K. Stephenson , "Stephenson Family Tree", database, Genealogy Online (https://www.genealogieonline.nl/stephenson-family-tree/I89301.php : accessed May 4, 2025), "Isabelle De Lorraine (1410-1453)".
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