qnli question: What are the doctrines of the Reformed churches called? sentence: The Reformed churches thus believed in some form of Catholicity, founded on their doctrines of the five solas and a visible ecclesiastical organization based on the 14th and 15th century Conciliar movement, rejecting the papacy and papal infallibility in favor of ecumenical councils, but rejecting the latest ecumenical council, the Council of Trent.