Mezue ahịrịokwu na-esonụ: Na 1656, n'oge mmalite nke Agha Northern nke Abụọ, ndị Brandenburgian Hohenzollern weghaara Prussian duchy na Ermland (Ermeland, Warmia) dị ka ndị Sweden na-eme ihe na Treaty nke Königsberg, tupu eze Sweden tọhapụ ha site na vassalage ma mee ka ha bụrụ ndị ọchịchị zuru oke na mpaghara ndị ahụ. Mgbe ọ lụchara ọgụ na ndị agha Sweden na 1656, nke kachasị pụta ìhè na
Agha nke Warsaw, Hohenzollern Frederick William I dị njikere ịhapụ onye ya na ya jikọrọ aka mgbe agha ahụ megidere ha ma gosipụta njikere ya ịgbanwe akụkụ ma ọ bụrụ na Eze Polish John II Casimir Vasa ga-enye ya ihe ùgwù ndị yiri nke Eze Sweden bụ Charles X Gustav, ọnọdụ ndị a na-atụle na Wehlau (Welawa, ugbu a Znamensk) na Bromberg (Bygost, Bydgoszcz).