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.
When copying data from this family tree, please include a reference to the origin: Keith Swartz, "Swartz/Rand Family Tree", database, Genealogy Online (https://www.genealogieonline.nl/swartz-rand-family-tree/I88929527.php : accessed May 4, 2025), "Isabelle of VALOIS Queen of England (1389-1410)".
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