Papal Library

The Writings ofPope Pius X Apostolic Exhortation Encyclicals Oath Against Modernism

Pope John XXIII1958-1963Angelo Giuseppe Roncalli born 1881When on October 20, 1958 the cardinals, assembled in conclave, elected Angelo Roncalli as pope many regarded him, because of his age and ambiguous reputation, as a transitional pope, little realizing that the pontificate of this man of 76 years would mark a turning point in history and initiate a new age for the Church. He...

Mysterium FideiEncyclical of Pope Paul VI on the Holy EucharistSeptember 3, 1965To His Venerable Brothers the Patriarchs, Primates, Archbishops, Bishops and other Local Ordinaries in Peace and Communion with the Apostolic See, and to the Clergy and Faithful of the Entire World.Venerable Brothers and Dear Sons, Health and Apostolic Benediction.The Mystery of Faith, that is, the ineffable gift of the Eucharist that...

Singulari QuidemEncyclical of Pope Pius IXon the Church in AustriaMarch 17, 1856To Our Beloved Sons the Cardinals of the Holy Roman Church and to Our Venerable Brothers the Archbishops and Bishops of the Austrian Empire.Beloved Sons and Venerable Brothers, Greetings and Apostolic Blessing.It is with a special joy that We learn of your willing response to Our wishes and those of Our...

 The Writings ofPope Pius VII Encyclicals Diu Satison a Return to Gospel PrinciplesMay 15, 1800  

In Dominico AgroEncyclical of Pope Clement XIIIon Instruction in the FaithJune 14, 1761To the Venerable Brothers, the Patriarchs, Primates, Archbishops and Bishops. Venerable Brothers, Greetings and Apostolic Benediction.In the Lord's field, for the tending of which Divine Providence placed Us as overseer, there is nothing which demands as much vigilant care and unremitting labor in its cultivation than guarding the good seed...