Saint Leo IX summary

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Saint Leo IX, orig. Bruno, count von Egisheim und Dagsburg, (born 1002, Egisheim, Alsace, Upper Lorraine—died April 19, 1054, Rome; feast day April 19), Pope (1049–54). He was consecrated bishop of Toul in 1027. He was named pope by Emperor Henry III but insisted on election by the clergy and people of Rome. His efforts to strengthen the papacy and eradicate clerical marriage and simony laid the foundation for the Gregorian reform movement. His assertion of papal primacy and his military campaign against the Normans in Sicily (1053) alienated the Eastern church. His representatives excommunicated the patriarch of Constantinople. Though Leo had already died, their act triggered the Schism of 1054.

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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

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Saint, holy person, believed to have a special relationship to the sacred as well as moral perfection or exceptional teaching abilities. The phenomenon is widespread in the religions of the world, both ancient and contemporary. Various types of religious personages have been recognized as saints,

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Vatican City, landlocked ecclesiastical state, seat of the Roman Catholic Church, and an enclave in Rome, situated on the west bank of the Tiber River. Vatican City is the world’s smallest fully independent nation-state. Its medieval and Renaissance walls form its boundaries except on the southeast

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Roman Catholicism, Christian religion 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