Treaty of Gniezno

The Treaty of Gniezno, signed in 963, was an important agreement between the Polish ruler Mieszko I and the German Holy Roman Emperor Otto I. It recognized Poland as a Christian state and established a church hierarchy, with Gniezno as the seat of the archbishopric. This treaty strengthened Poland's political independence and organized its religious structure, fostering closer ties with the broader Christian community. It marked Poland's emergence as a recognized political entity in medieval Europe and laid foundations for the country’s future sovereignty and church development.