Historically, the Unofficial Pontiff
Puzzle 3 of Periodic Table Medium Pack
Question is: Historically, the Unofficial Pontiff
and the answer is: ANTIPOPE
Word Meaning:
ANTIPOPE — (Christianity) A person who claims or claimed to be the pope, usually as the result of a disputed election or deposition, but is not considered by the Roman Catholic Church to be the real pope.
Definitions from Wiktionary.