The Roman Inquisition

Paul III established the Congregation of the Holy Office in 1542, in the bull Licet ab initio, at a moment when Protestant teaching was spreading into Italy and the papacy judged the existing, largely local, machinery of the medieval inquisition inadequate to the threat. The new body was centralized in Rome under a small group of cardinal inquisitors and could direct proceedings across Catholic Europe, though in practice its authority was strongest within Italy itself and weaker in kingdoms, such as Spain, that maintained their own separate tribunals answering to the crown rather than to Rome.

The Roman Inquisition's caseload extended beyond suspected Protestants to include magical practice, moral offenses, and, from the early seventeenth century, philosophical and scientific claims that appeared to conflict with scripture as the church then read it. Giordano Bruno, tried over several years on charges that combined heretical theology with cosmological claims, was burned at the stake in Rome in 1600 after refusing to recant. Suspects who cooperated and recanted generally received penances rather than execution, and the Congregation kept written records of its proceedings far more systematically than most secular courts of the period, part of why its case files remain an unusually detailed source for historians of early modern belief and dissent.

The Roman Inquisition's most consequential case began in 1616, when Galileo Galilei was warned against holding or defending the Copernican view that the earth moves around the sun, and reached its conclusion in 1633, when he was tried, found suspect of heresy for publishing a defense of Copernicanism after that warning, and forced to recant under threat of further proceedings; he spent the remainder of his life under house arrest. The condemnation of heliocentrism as contrary to scripture was not formally reversed by the church until the twentieth century, and the case remains the standard reference point for the historical tension between the institution and scientific inquiry.

The Congregation's activity and visibility declined sharply after the seventeenth century as its powers were curtailed across much of Catholic Europe by increasingly independent states. Pope Pius X renamed it the Supreme Sacred Congregation of the Holy Office in 1908, and the Second Vatican Council's reforms led Pope Paul VI to rename it again, in 1965, as the Congregation for the Doctrine of the Faith, stripped of its judicial and punitive functions and refocused on doctrinal oversight, under which name a much changed successor institution continues within the Roman Curia.