Editing Sedevacantism (section)

=== Origin ===
{{Missing information|section|who, when and in what circumstances started the movement|date=December 2023}}
Sedevacantism owes its origins to the rejections of theological and disciplinary changes implemented following the [[Second Vatican Council]] (1962–1965).<ref>{{citation | first1 = Patrick | last1 = Madrid| author1-link = Patrick Madrid | first2 = Peter | last2 = Vere | title = More Catholic Than the Pope: An Inside Look at Extreme Traditionalism | page = 169 | publisher = Our Sunday Visitor | year = 2004 | isbn = 1931709262}}</ref> Sedevacantists reject this Council, on the basis of their interpretations of its documents on [[ecumenism]] and [[Freedom of religion|religious liberty]], among others, which they see as contradicting the traditional teachings of the Catholic Church and as denying the unique mission of Catholicism as the [[one true religion]], [[Extra Ecclesiam nulla salus|outside of which there is no salvation]].<ref>[[Edward Jarvis (author)|Jarvis, E.]] ''Sede Vacante: the Life and Legacy of Archbishop Thuc,'' Apocryphile Press, Berkeley CA, 2018, pp. 8–10.</ref> They also say that new disciplinary norms, such as the [[Mass of Paul VI]] promulgated on 3 April 1969, undermine or conflict with the historical Catholic faith and are deemed [[Blasphemy|blasphemous]], while post-Vatican II teachings, particularly those related to ecumenism, are labelled [[Heresy in the Catholic Church|heresies]].<ref>{{citation | first = Frank K | last = Flinn | title = Encyclopedia of Catholicism | page = [https://archive.org/details/encyclopediaofca0000flin/page/566 566] | publisher = Facts on File | year = 2007 | isbn = 978-0816054558 | url = https://archive.org/details/encyclopediaofca0000flin/page/566 }}</ref> They conclude, on the basis of their rejection of the [[Mass of Paul VI|revised Mass rite]] and of postconciliar church teaching as false, that the popes involved are also false.<ref name=IUP /> Among even [[traditionalist Catholics]],<ref name=UCP /><ref name=HDC>{{citation | url = https://books.google.com/books?id=L8C3TKNdn5oC&pg=PA399 | first = William J | last = Collinge | title = Historical Dictionary of Catholicism | publisher = Scarecrow | year = 2012 | isbn = 978-0810879799 | page = 566}}</ref> this is a quite divisive question.<ref name=IUP /><ref name= UCP />

Traditionalist Catholics who are not sedevacantists recognize the line of popes leading to and including [[Pope Leo XIV]] as legitimate.<ref>{{citation | first = David | last = Gibson | title = The Rule of Benedict: Pope Benedict XVI and His Battle with the Modern World | page = 355 | publisher = Harper Collins | year = 2007 | isbn = 978-0061161223}}</ref> Sedevacantists, however, claim that the infallible [[Magisterium]] of the Catholic Church could not have decreed the changes made in the name of the Second Vatican Council, and conclude those who issued these changes could not have been acting with the authority of the Catholic Church.<ref>{{citation | first1 = Martin E | last1 = Marty | first2 = R. Scott | last2 = Appleby | title = Fundamentalisms Observed | page = 66 | publisher = University of Chicago Press | year = 1991 | isbn = 0226508781}}</ref> Accordingly, they hold that [[Pope John XXIII]] and his successors [[Apostasy in Christianity|have left]] the true Catholic Church and thus lost legitimate authority. A [[Heresy in the Catholic Church#Formal and material heresy|notorious heretic]], they say, cannot be the Catholic pope.<ref>{{citation | first = Daniel | last = Wójcik | title = The End of the World As We Know It: Faith, Fatalism, and Apocalypse in America | page = 86 | publisher = New York University Press | year = 1997 | isbn = 0814792839}}</ref>