Original: Conciliarism , or the conciliar movement , was a reform movement in the 14th , 15th and 16th century Roman Catholic Church which held that final authority in spiritual matters resided with the Roman Church as corporation of Christians , embodied by a general church council , not with the pope .
Simplified: The Conciliar Movement was a Christian reform movement in the 14th and 15th centuries in the Roman Catholic Church which held that final authority in spiritual matters resided with the Church as corporation of Christians , embodied by a general church council , not with the Pope .