June 26 » Western Schism: The Roman Catholic Church is led into a double schism as Petros Philargos is crowned Pope Alexander V after the Council of Pisa, joining Pope Gregory XII in Rome and Pope Benedict XII in Avignon.
September 23 » The Battle of Kherlen is the second significant victory over Ming dynasty China by the Mongols since 1368.
When copying data from this family tree, please include a reference to the origin: Tom Terveer, "Family tree Terveer, Blankertz, Gerhards", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-terveer-blankertz-gerhards/I162316165845.php : accessed May 21, 2024), "Hannemann von Zweibrücken II (????-1418)".
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