Still a symbol of the papacy, it was last used by Pope Paul VI in 1963. Also known as “triregnum,” it was a crown used by Catholic popes. Its three levels were commonly associated with either the threefold office of Christ (priest, prophet, and king, the pope being Christ’s vicar) or to with pope being the servant of the three churches: the Church Militant, the Church Suffering, and the Church Triumphant. It was not a liturgical item, but one mostly used for ceremonial processions. Up until the late Middle Ages, tiaras and miters looked almost exactly the same.