皇帝 こうてい教皇 きょうこう主義 しゅぎであれば
kōtei kyōkō shugideareba

Noun
Da Copula

The "-eba" conditional form ("if/when…") of 皇帝教皇主義

1. If it were emperor-popeism; Were it emperor-popeism

Ba Conditional