The Pope in Red - Defense of Siri Thesis FACT Against John Vennari. Giuseppe Siri ( – ) was an Italian Cardinal of the Catholic Church who served as Archbishop of Genoa from 1946 to 1987, and was elevated to the rank of cardinal in 1953 by Pope Pius XII. Paragraph 2. "The Siri Thesis purports that, at the 1958 conclave, Cardinal Siri was elected Pope and took the name Pope Gregory XVII; but was displaced by Cardinal Roncalli, who became the false Pope John XXIII. The same happened in 1963 with “Siri” being “elected”, and then displaced by the false Pope Paul VI.".
CARDINAL GIUSEPPE SIRI POPE GREGORY XVII - The Immaculate Heart He was a close friend of Pope Pius XII, and a staunch defender of tradition. The Siri Thesis/Fact, holds that actually Cardinal Giuseppe Siri was elected pope after the death of Pope Pius XII in 1958, but the newly-elected Pope Gregorius XVII, formerly Cardinal Siri was threatened i.e. put under grave duress at the conclave, prevented from taking the Papal Chair and illegally replaced by Roncalli aka "pope" John XXIII.
Against the Siri Thesis He was considered a likely candidate to succeed Pius XII, John XXIII, Paul VI, and John Paul I. There is evidence the Cardinal Giuseppe Siri was elected to the papacy before the attempted election of apostate, Antipope John XXIII in 1958. Initial announcement of the Vatican Radio that a Pope had been elected October 26, 1958 ―Too few people realize how easy it is to get the Vatican Radio on the medium waveband 196.2