This is the first of 24 posts on post-World War II alternative popes (“antipopes” from the perspective of the Roman Catholic Church). Here I give an overview of different kinds of post-Vatican II traditionalist groups, including sedevacantists, who believe that the pope in Rome is not the true pope. I also discuss two types of alternative popes: those who claim supernatural election (“mystically elect”) and those who have been chosen in some type of conclave (“conclavists”). This post will be a useful introduction to the following 20 posts on different alternative popes and religious groups.
Modern Alternative Popes 1: Introduction
