Thirteen Years’ War: the beginning of the Battle for Kneiphof.
Conflict between the Prussian Confederation, Poland, and the Teutonic Order
🗓️ 13 April 1455
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 Teutonic Order.
