Council of Constantinople (Fourth, Roman Catholic)

(Eighth Ecumenical Council) Fourth Council of Constantinople was called by Emperor Basil I in 869-870, to excommunicate St. Photius, resulting in increased animosity between the Western and Eastern churches. It deposed Patriarch Photios I of Constantinople and reinstated St. Ignatius. (This council is accepted by the Roman Catholic Church but rejected as a robber council by the Eastern Orthodox Church.)

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