Editing 1454 (section)

===January&ndash;December===
* [[February 4]] &ndash; [[Thirteen Years' War (1454–66)|Thirteen Years' War]]: The Secret Council of the [[Prussian Confederation]] sends a formal act of disobedience to the [[Grand Masters of the Teutonic Knights|Grand Master]], and the citizens of [[Toruń]] rebel against the [[Teutonic Knights]], beginning the conflict.
* [[March 6]] &ndash; [[Casimir IV of Poland]] renounces allegiance to the [[Teutonic Knights]].
* [[March 27]] &ndash; [[Richard Plantagenet, Duke of York]], becomes Protector for King [[Henry VI of England]], who is in a catatonic state.
* [[April 9]] &ndash; [[Treaty of Lodi]]: [[Francesco Sforza]] forms a triple alliance between the [[Duchy of Milan]], the [[Republic of Florence]] and [[Kingdom of Naples]].<ref>{{cite book|author=Christina J. Moose|title=Great Events from History: The Renaissance & early modern era, 1454-1600|url=https://books.google.com/books?id=oKXxAAAAMAAJ|year=2005|publisher=Salem Press|isbn=978-1-58765-215-8|page=15}}</ref>
* [[August]] &ndash; In [[Moldavia]], [[Petru Aron]] retakes the throne from [[Alexăndrel of Moldavia|Alexăndrel]].
* [[September 18]] &ndash; [[Thirteen Years' War (1454–66)|Thirteen Years' War]] &ndash; [[Battle of Chojnice (1454)|Battle of Chojnice]]: The [[Kingdom of Poland (1385–1569)|Polish]] army is defeated by a smaller but more professional [[Teutonic Knights|Teutonic]] army.
* [[October 9]] &ndash; [[Thirteen Years' War (1454–1466)|Thirteen Years' War]]: [[Malbork treaty]] between the authorities of the Teutonic Order and the mercenary forces fighting for the Teutonic Order.
* [[December]] &ndash; King Henry VI of [[Kingdom of England|England]] having regained his sanity dismisses the Duke of York as Protector.