Pope of the Roman Catholic Church (1271-1276) born Piacenza, Lombardy, in today's Italy, who was elected to succeed Clement IV after three years of vacant papal seat and, as pontiff, reformed the assembly of cardinals through a bull, subsequently incorporated into the code of canon law, to regulate conclaves for the papal election, and also promulgated the bull De Regno Portugaliae (1276). Before being elected he was already involved in the Ninth Crusade to St. John of Acre, in the Holy Land, with the future King Edward I of England (1270).
Traveling to Saint Jean d'Acre, Palestine, he was notified of his election as pope while in Viterbo, in the Papal States (1271). He returned to Rome and his first act was to promote a council that took place in Lyon (1274) to debate the Passover Schism, the condition of the Holy Land, and the abuses of the Catholic Church. At this Council, where he promulgated new provisions for the election of the pope in a document entitled Ubi perículum (1274) · which means When there is danger.
In this document the word Conclave appeared for the first time, which means under lock and key and which in ecclesiastical jurisprudence indicates the place where the they gather the cardinals, after the death of the pope, to deal solely with the election of his successor and also appoints the assembly of cardinals gathered for the election. On his return from one of the council sessions, he died in Arezzo, Tuscany, and was beatified (1713) and his votive date is commemorated on January 10th. Pope number 185 was succeeded by Innocent V (1276).
Source: http://www.dec.ufcg.edu.br/biografias/
Order T - Biography - Brazil School
Source: Brazil School - https://brasilescola.uol.com.br/biografia/tedaldo-visconti.htm
