The Bishopric of Poznań is a historical ecclesiastical territory in Poland, established in the 10th century. It was one of the first bishoprics in the country, playing a significant role in the Christianization of the region. The bishopric's seat is located in the city of Poznań, which has been a central hub for the Catholic Church in Poland. Throughout its history, the Bishopric of Poznań has been influential in both religious and political matters. It has produced several notable bishops, contributing to the development of the Polish state and its culture. The bishopric remains an important part of the Archdiocese of Gniezno, which is the oldest archdiocese in Poland.