Ecclesiastical Principalities are territories governed by religious leaders, often within the context of the Catholic Church. These principalities were typically ruled by bishops or abbots who held both spiritual and temporal authority, allowing them to exercise power over their regions while also overseeing religious matters. Historically, these principalities played a significant role in the political landscape of medieval Europe. They were often influential in local governance and could wield considerable power, especially during times when the church held significant sway over societal and political issues.