Editing 1621 (section)

=== July&ndash;September ===
* [[July 25]] &ndash; [[Thirty Years' War]] &ndash; [[Battle of Neu Titschein]]: Remnants of the Bohemian army temporarily hold off the Imperial advance in [[Silesia]].
* [[August 8]] &ndash; [[Huguenot rebellions]]: The French Protestant city of [[La Rochelle]] joins in the revolt by [[Benjamin, Duke of Soubise]].  
* [[August 22]] &ndash; [[Huguenot rebellions]]: [[Louis XIII of France]] [[Siege of Montauban|besieges the city of Montauban]], but is forced to abandon the battle by November 9.
* [[September 2]] &ndash; The [[Battle of Khotyn (1621)|Battle of Khotyn]] begins as a force of more than 120,000 Ottoman troops attacks the Moldavian city of Khotyn. Despite the Ottomans' numerical superiority, the Polish-Lithuanian Commonwealth wins the battle and forces a surrender five weeks later. <ref name="Żółkiewski1959">{{cite book|author=Stanisław Żółkiewski|title=Expedition to Moscow: A Memoir|url=https://books.google.com/books?id=BQ1pAAAAMAAJ|year=1959|publisher=Polonica Publications|page=34|language=en}}</ref>