who declared that every creature is subject to the pope for salvation
Unam sanctam On 18 November 1302, Pope Boniface VIII issued the papal bull Unam sanctam[a] which some historians[1] consider one of the most extreme statements of papal spiritual supremacy ever made.[not in citation given (See discussion.)] The original document is lost but a version of the text can be found in the registers of Boniface VIII in the Vatican Archives.[2] The Bull lays down dogmatic propositions on the unity of the Catholic Church, the necessity of belonging to it for eternal salvation, the position of the pope as supreme head of the Church, and the duty thence arising of submission to the pope in order to belong to the Church and thus to attain salvation. The pope further emphasizes the higher position of the spiritual in comparison with the secular order.
Saint On 3 January 993, Pope John XV became the first pope to proclaim a person a "saint" from outside the diocese of Rome: on the petition of the German ruler, he had canonized Bishop Ulrich of Augsburg. Before that time, the popular "cults", or venerations, of saints had been local and spontaneous and were confirmed by the local bishop.[18] Pope John XVIII subsequently permitted a cult of five Polish martyrs.[18] Pope Benedict VIII later declared the Armenian hermit Symeon to be a saint, but it was not until the pontificate of Pope Innocent III that the Popes reserved to themselves the exclusive authority to canonize saints, so that local bishops needed the confirmation of the Pope.[18] Walter of Pontoise was the last person in Western Europe to be canonized by an authority other than the Pope: Hugh de Boves, the Archbishop of Rouen, canonized him in 1153.[19][20] Thenceforth a decree of Pope Alexander III in 1170 reserved the prerogative of canonization to the Pope, in so far as the Latin Church was concerned.[19]