Innocent III summary

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Innocent III, orig. Lothar of Segni, (born 1160/61, Gavignano Castle, Campagna di Roma, Papal States—died July 16, 1216, Perugia), Pope (1198–1216). Innocent, who was trained in both theology and law, brought the medieval papacy to the height of its prestige and power. He crowned Otto IV as Holy Roman emperor, but Otto’s determination to unite Germany and Sicily angered him, and in 1212 he gave his support to the Hohenstaufen candidate, Frederick II. After Innocent excommunicated King John of England for refusing to recognize Stephen Langton as archbishop of Canterbury, John was obliged to submit and to declare England a fief of the Holy See (1213). Innocent launched the Fourth Crusade, which captured Constantinople, and the Albigensian Crusade, which attempted to suppress heresy in southern France. He approved the Mendicant orders founded by St. Dominic and St. Francis of Assisi, and he convoked the fourth Lateran Council, which promulgated the doctrine of transubstantiation and endorsed annual confession for all Christians.

Roman Catholicism Summary

Roman Catholicism, Christian church that has been the decisive spiritual force in the history of Western civilization. Along with Eastern Orthodoxy and Protestantism, it is one of the three major branches of Christianity. It is led by the pope, as the bishop of Rome, and the Holy See forms the

Christianity Summary

Christianity, major religion stemming from the life, teachings, and death of Jesus of Nazareth (the Christ, or the Anointed One of God) in the 1st century ce. It has become the largest of the world’s religions and, geographically, the most widely diffused of all faiths. It has a constituency of

Albigensian Crusade Summary

Albigensian Crusade, Crusade (1209–29) called by Pope Innocent III against the Cathari, a dualist religious movement in southern France that the Roman Catholic Church had branded heretical. The war pitted the nobility of staunchly Catholic northern France against that of the south, where the

church and state Summary

Church and state, the concept, largely Christian, that the religious and political powers in society are clearly distinct, though both claim the people’s loyalty. A brief treatment of church and state follows. For full treatment, see Christianity: Church and state. Before the advent of