The Thirteen Years' War, also called the War of the Cities, was a conflict fought in 1454–1466 between the Prussian Confederation, allied with the Crown of the Kingdom of Poland, and the State of the
Prussian Confederation offered to incorporate Prussia into the Crown of the Kingdom of Poland, 1454, Central Archives of Historical Records, Warsaw
Ludwig von Erlichshausen
Battle of Konitz, 1454
Eric II, Duke of Pomerania
Malbork treaty
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Malbork treaty was signed on 9 October 1454, in the fortress of Marienburg. It was between the authorities of the Teutonic Order, represented by the Grand Master Ludwig von Erlichshausen, and the comm
Grand Master Ludwig von Erlichshausen's negotiations with the commanders of the mercenary army in the Malbork fortress.
The Czech units, relying on field fortifications, repelled the attack of mounted knights – the new infantry tactics revolutionized the ways of waging wars in the 15th century.
The fortress in Malbork at night. The unconquered capital of the Teutonic Order during the Thirteen Years' War was sold to Poland by German and Czech mercenaries.
The Teutonic Order's fortifications in Malbork. The fortress acquired in 1457 by the Kingdom of Poland from the mercenaries remained until the end of the 16th century one of the three strongest fortresses in Poland.