Leo IX is considered to be one of the most historically significant popes of the Middle Ages; he was instrumental in the precipitation of the Great Schism of 1054, considered the turning point in which …

Nov 28, 2025 · Political jealousies and interests intensified the disputes, and, at last, after many premonitory symptoms, the final break came in 1054, when Pope Leo IX struck at Michael Cerularius …

ON SATURDAY, JULY 16, 1054, as afternoon prayers were about to begin, Cardinal Humbert, legate of Pope Leo IX, strode into the Cathedral of Hagia Sophia, right up to the main altar, and placed on it a …

Unfortunately, in 1054, the pope had become threatened by the Normans and needed allies. So, Pope Leo IX sent a legate to the east to seek help against his enemies as well as to try to negotiate on …

May 28, 2025 · On July 16, 1054, Cardinal Humbert marched into Constantinople's magnificent Hagia Sophia during the Divine Liturgy. As shocked worshippers watched, he placed a papal bull on the …

One of the most impactful events in this regard was the Great Schism of 1054, a rupture between the Western Church, led by the Pope of Rome, and the Eastern Church, headed by the Patriarch of …

Nov 2, 2025 · In 1054, Pope Lev sent a message to Kerularii, which, in support of the papal claims to complete power in the Church, contained extensive extracts from a fake document known as the …

In 1054, Pope Leo IX sent an emissary, Cardinal Humbert, from Rome to Constantinople. The cardinal's visit with Patriarch Cerularios was meant to be a mission of conciliation.

In 1965, Pope Paul VI and Ecumenical Patriarch Athenagoras I nullified the anathemas of 1054, [1] although this merely as a gesture of goodwill and not constituting any sort of reunion.

After Charlemagne, the king of the Franks, saved Rome from a Lombard attack, Pope Leo III (not to be confused with the Byzantine Leo III) declared him the new Roman emperor in 800 CE, since a …