The Croce di Pietro (使徒十字 (クローチェディピエトロ) Shito Jūji (Kurōche di Pietoro)?, lit. "Apostle's Cross") is a powerful magical artifact owned by the Roman Catholic Church that can forcefully subjugate a territory and its inhabitants under the will and dominion the Church. It is one of the church's Ten Holy Artifacts and is considered to be the highest spiritual tool in legends comparable to that of the holy items left behind by the Son of God, and a secret weapon of the Roman Catholic Church.