👉 In Catholicism, an antipope is a bishop who has been removed from office by his predecessor. The term comes from Latin and means "the one who opposes." Antipopes are typically referred to as "Bishops of Rome" or "Bishops of Constantinople," after the city that they served as papal legates. In Catholic history, antipopes have held various positions in the Papacy, including the papal legate for Italy and the pope's envoy to the