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By the time, Great Schism the patriarch of Contantinople named Michael Cerularius dispute with Pope Leo IX. They differed with Roman church in their Eucharist. They do not use unleavened bread.
Pope Leo IX was the pope whose actions resulted in the Great East-West Schism of 1054.
Pope Leo X was responsible for the rebuilding of Saint Peter's Basilica in Rome.
Another answer from our community:because despite leo's arguments many church leaders in esatern europe most notably the byzantine patriarch michael cerularius refused to recognize the supremacy of the pope
Pope Leo IX excommunicated Patriarch Michael Cerularius of Constantinople, who, in turn, excommunicated Pope Leo in 1054 AD. This was caused because of disagreements over the unauthorized changes made by Pope Leo to the Nicene Creed (by adding the "Filioque clause"). The Orthodox Church maintains that Holy Spirit "proceeds from the Father alone, whereas the Roman Catholics claimed that the Holy Spirit proceeds from the Father "and the Son" which goes against the Bible. "The Bible states that ...the Spirit of truth who proceeds from the Father..." (John 15:26). However, both of these excommunications were mutually removed in 1965 by Pope Paul VI and Patriarch Athenagoras I.
Pope Leo XIII was the pope in 1896. He was pope from 1878 to 1903.
Pope Leo became the Pope in 1513, his name also changed from Giovanni di Lorenzo de' Medici to Pope Leo.
No, Pope S. Leo the Great was not married.
Pope Leo XIII was an excellent pope and a prolific writer of encyclicals.
Pope Leo I died on 461-11-10.
Pope Leo V died in 903.
Pope Leo II was born in 611.