Sedevacantism is the position, held by a minority of traditionalist Catholics, that the present occupant of the papal see is not truly pope and that, for lack of a valid pope, the see has been vacant since the death of Pope Pius XII in 1958.
Sedevacantism is the position, held by a minority of traditionalist Catholics, that the present occupant of the papal see is not truly pope and that, for lack of a valid pope, the see has been vacant since the death of Pope Pius XII in 1958.