The Great Schism
Wingardium Leviosa caused the Kings to fall and corruption began due to the loss of political power by the Catholic Church.
Pope Leo IX was the pope whose actions resulted in the Great East-West Schism of 1054.
You're thinking of the Eastern Schism, sometimes called the Great Schism, but in the Catholic Church, the Great Schism refers to the Western Schism in the 15th century, not the Eastern Schism in the 11th century.
The Great Schism usually refers to the formal separation in 1054 between Roman Catholicism and the Orthodox Church. (There are many points of difference between the two Churches, though both continue to consider themselves Catholic, and both profess their faith on the points of the Nicene Creed). But the Great Schism may also sometimes refer to the period of the Avignon / Rome pope / antipope controversy. (Crucially this period includes the conflict between Baldassare Cossa and Jan Hus - from which all subsequent Protestantism flows). And for devotees of the Russian Orthodox church the Great Schism may also refer to the conflict with the Old Believers doctrines.
The Western Schism, also known as the Papal Schism, lasted from 1378 to 1417. It was a split within the Roman Catholic Church, where there were two or even three rival popes claiming authority. The Schism resulted in a decline of Church power as it weakened the credibility and unity of the Church, creating divisions among the faithful.
Roman Catholic AnswerThere were two "schisms" that are commonly referred to when speaking of the church. The Western Schism or Great Schism was not a true schism but refers to the time in the late 14 century when the Pope moved to Avignon and another pseudo-Pope was elected in Rome; at one time, before the end of this disaster there were three "popes". The Schism of the East, which was a true schism, resulted in the Orthodox Church separating from the Catholic Church in 1054. This schism has been an off again, on again thing through the centuries and is a great heartbreak for the Church.
The Great Schism was the division of Chalcedonian Christianity into the Eastern (Greek) and Western (Latin) branches. The Great Schism began in Constantinople in 1053.
The East–West Schism, commonly referred to as the Great Schism of 1054, is the break of communion between what are now the Eastern Orthodox and Catholic Churches, which began in the 11th century and continues.
The Great Schism of 1054 occurred among the Christians of Eastern and Western Roman Empire.
The Great Schism between what then came to be called the Catholic Church and the Orthodox Church occurred after the the fall of Rome, which was actually the fall of the western part of the Roman Empire, which fell under the weight of the invasions by Germanic peoples. The Eastern part of the Roman Empire was not affected by these invasions and continued to exist for another 1,000 year and continued after the Great Schism.
Yes, these events are known as the Great Schism when the Roman Catholic church broke off The Orthodox Church.Roman Catholic AnswerIn the Catholic Church, the "Great Schism" usually refers to the Western schism when there were two, sometimes, three claimants to the papal throne. The pope had moved to Avignon, in France; another Pope was elected in Rome. This went on from 1378 until 1417. The Schism of the East in 1054 was between the Catholic Church and what is now called the Orthodox Church, is sometimes now in popular cultures as "the Great Schism". But, as I said, it is confusing as that technically refers to the Schism of the West not the East.