The Prussian Confederation, consisting of a coalition of cities and nobles in Prussia, was formed to resist the authority of the Teutonic Knights, a powerful military order that controlled much of the region. In the struggle for independence, the Confederation sought the support of external powers, leading them to reach out to King Casimir IV of Poland for aid. On March 6, 1454, delegates formally pledged their allegiance to the King, which was a pivotal moment in their campaign for liberation. King Casimir IV, recognizing the strategic value of Prussia and motivated by opportunities to expand Polish influence, consented to provide military assistance to the Confederation.This alliance catalyzed a larger conflict known as the Thirteen Years' War, which would last from 1454 to 1466. Following this agreement, Polish forces engaged in extensive military actions against the Teutonic Knights, marking a significant shift in the balance of power in the region. The involvement of Polish troops invigorated the Prussian Confederation's efforts, leading to key victories and territorial gains. These events not only shaped the future of Prussia but also influenced the broader dynamics of Central European politics in the following decades, highlighting the interplay between local and larger sovereign dynamics during a time of conflict.