Pope Pius V, OP, born Antonio Ghislieri, was head of the Catholic Church and ruler of the Papal States from 7 January 1566 to his death, in May 1572. He was an inquisitor and is venerated as a saint of the Catholic Church. From Wikipedia
In a gesture of humility and Marian devotion, Pope Francis chose a simple tomb at Santa Maria Maggiore, where his remains will be transferred this Saturday through a public procession in Rome.