The Prince-Bishopric of Osnabrück[1]) (German: Hochstift Osnabrück; Fürtsbistum Osnabrück, Bistum Osnabrück) was an ecclesiastical principality of the Holy Roman Empire from 1225 until 1803. It should not be confused with the Diocese of Osnabrück (German: Bistum Osnabrück), which was larger and over which the prince-bishop exercised only the spiritual authority of an ordinary bishop. It was named after its capital, Osnabrück.