Great Schism

American  

noun

1. a period of division in the Roman Catholic Church, 1378–1417, over papal succession, during which there were two, or sometimes three, claimants to the papal office.

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Great Schism British  

noun

1. the breach between the Eastern and Western churches, usually dated from 1054

2. the division within the Roman Catholic Church from 1378 to 1429, during which rival popes reigned at Rome and Avignon

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Example Sentences

Sure, go ahead and ask us to believe that John Wick’s lineage stretches back to Beowulf, the Battle of Hastings and the Great Schism.

From Los Angeles Times • Jun. 5, 2025

In recognition, for the first time since the Great Schism of 1054, the Patriarch of Constantinople attended the installation of a new Bishop of Rome.

From BBC • Apr. 21, 2025

After the conclusion of the Great Schism, some attempts were made to resolve such doubts and misgivings by granting more authority to councils of clergy rather than popes through the conciliar movement.

From Textbooks • Apr. 19, 2023

The Eastern and Western branches of Christianity separated in the Great Schism of 1054.

From Reuters • Jun. 30, 2022

He ridiculed both the "pope-maniacs" and the "pope-phobes," the indulgence-sellers and the inquisitors, the decretals "written by an angel" and the Great Schism, priests and kings and doubting philosophers and the Scripture.

From The Age of the Reformation by Smith, Preserved