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Papal garments

Pope Pius V (reigned 1566–1572), is often credited with having originated the custom whereby the pope wears white, by continuing after his election to wear the white habit of the Dominican order. In reality, the basic papal attire was white long before. The earliest document that describes it as such is the Ordo XIII, a book of ceremonies compiled in about 1274. Later books of ceremonies describe the pope as wearing a red mantle, mozzetta, camauro and shoes, and a white cassock and stockings. Many contemporary portraits of 15th and 16th-century predecessors of Pius V show them wearing a white cassock similar to his.