of the Pope wearing white is the Ordo XIII, a book of ceremonies compiled in about 1274 under Pope Gregory X. From that date onward, the books of ceremonies speak ever more explicitly of the Pope as wearing a red mantle, mozzetta, camauro and shoes, and a white cassock and stockings. Canonizations Pius V canonized one saint during his reign: Ivo of Chartres on 18 December 1570. Consistories Pius V created 21 cardinals in three consistories including Felice Piergentile who would become Pope Sixtus V. Death and canonization Pius V died on 1 May 1572. Pius V suffered from bladder stones, a condition for which he was unwilling to have an operation. Additionally, Pius V fasted and served extensively in his last years, leading to "great weakness". After his death, three stones were discovered in his bladder. He was buried in the chapel of S. Andrea which was close to the tomb of Pope Pius III, in the Vatican. Although his will requested he be buried in Bosco, Pope Sixtus V built a monument in the chapel of SS. Sacramento in the Liberian basilica. His remains were transferred there on 9 January 1588. In 1696, the process of Pius V's canonisation was started through the efforts of the Master of the Order of Preachers, Antonin Cloche. He also immediately commissioned a representative tomb from the sculptor Pierre Le Gros the Younger to be erected in the Sistine Chapel of the Basilica di Santa Maria Maggiore. The pope's body was placed in it in 1698. Pope Pius V was beatified by Pope Clement X in the year 1672, and was later canonized by Pope Clement XI (1700–21) on 22 May 1712. In the following year, 1713, his feast day was inserted in the General Roman Calendar, for celebration on 5 May, with the rank of "Double", the equivalent of "Third-Class Feast" in the General Roman Calendar of 1960, and of its present rank of "Memorial". In 1969 the celebration was moved to 30 April, the day before the anniversary of his death (1 May). Cardinal John Henry Newman declared that "St. Pius V was stern and severe, as far as a heart burning and melted with divine love could be so ... Yet such energy and vigour as his were necessary for the times. He was a soldier of Christ in a time of insurrection and rebellion, when in a spiritual