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.
August 7 » Battle of Guinegate, French troops of King Louis XI were defeated by the Burgundians led by Archduke Maximilian of Habsburg.
September 4 » The Treaty of Alcáçovas is signed by the Catholic Monarchs of Castile and Aragon on one side and Afonso V and his son, Prince John of Portugal.
When copying data from this family tree, please include a reference to the origin: Peter John Oswald, "Pop Oswald Tree", database, Genealogy Online (https://www.genealogieonline.nl/pop-oswald-tree/P28055.php : accessed May 1, 2025), "Robert De LEGH (1410-1479)".
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