"Prince-Bishops" were high-ranking ecclesiastical leaders in the Middle Ages who held both spiritual and temporal authority. They governed territories as princes while also serving as bishops, combining religious duties with political power. This dual role allowed them to influence both church and state affairs. The most notable example of a Prince-Bishopric is the Prince-Bishopric of Durham in England, which was established in the 11th century. Other examples include the Prince-Bishopric of Würzburg in Germany and the Prince-Bishopric of Liège in Belgium. These positions often led to conflicts between secular rulers and the church.