The Battle of Kcynia took place on June 1, 1656, and was one of battles of the Swedish invasion of Poland. It resulted in a victory of Swedish forces, commanded by King Charles X Gustav and Adolph John I, Count Palatine of Kleeburg. Czarniecki’s raid into Royal Prussia alarmed King Charles X Gustav, who at that time commanded the Siege of Danzig. Charles Gustav decided to act quickly, and in late May, he abandoned the siege, and together with his army marched southwards, reaching Bydgoszcz on May 31, to meet Adolph John.