
1) Christian term
Found on
https://www.crosswordclues.com/clue/sedevacantism

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. A tiny number of these claim the vacancy actually goes back to the death of Pope Pius X in 1914. Sedevacant...
Found on
http://en.wikipedia.org/wiki/Sedevacantism
No exact match found.