A prince-bishop is a bishop who is also the civil ruler of some secular principality and sovereignty, as opposed to Prince of the Church itself, a title associated with cardinals. Since 1951, the sole extant prince-bishop has been the Bishop of Urgell, Catalonia, who has remained ex officio one of two co-princes of Andorra, along with the French president.
Johann Otto von Gemmingen, Prince-Bishop of Augsburg (1591–1598)
Ecclesiastical lands in the Holy Roman Empire, 1780
A bishop is an ordained member of the clergy who is entrusted with a position of authority and oversight in a religious institution. In Christianity, bishops are normally responsible for the governance and administration of dioceses. The role or office of the bishop is called episcopacy. Organizationally, several Christian denominations utilize ecclesiastical structures that call for the position of bishops, while other denominations have dispensed with this office, seeing it as a symbol of power. Bishops have also exercised political authority within their dioceses.
A 6th-century image of Saint Augustine, bishop of Hippo Regius
Ignatius, bishop of Antioch, student of John the Apostle
A bishop with other officials on an 11th-century grave in Sweden
Johann Otto von Gemmingen, Prince-Bishop of Augsburg