Briefs (Pius VI) Nuper Pro – Brief of the Supreme Pontiff Pius VI (Mar. 6, 1779) Super Soliditate – Condemning the Errors of Johann Valentin Eybel, Also Known as Febronianism (Pius VI – 1786) Cum Populi – Brief of the Supreme Pontiff On the Civil Constitution of the Gallican Clergy Promulgated By the National Assembly (Pius VI – April 13, 1791) Quo Luctu – Brief of the Supreme Pontiff to the Venerable Archbishops and Bishops of the Kingdom of France On Relief From Principles of Ecclesiastical Discipline (Pius VI – May 4, 1791) Ubi Communis – Brief of the Supreme Pontiff to Venerable Brother John, Bishop of Aleria (Pius VI – Apr. 4, 1792) Quo Fluctu – Brief of the Supreme Pontiff On the Emergency Transfer of Part of the Apostolic Ministry to the Archbishops and Bishops of the Kingdom of France (Pius VI – May 30, 1792) Quae Causa – Brief On Extending Public Prayers From Rome Throughout All the Jurisdiction of the Supreme Pontiff (Pius VI – Nov. 24, 1792) Constantiam Vestram – Brief of the Supreme Pontiff (In Exile) to the Faithful Bishops of France (Pius VI – Nov. 10, 1798) Quoties Animo – Brief of the Supreme Pontiff on the Disposition of the Public Debt by Charles, Catholic King of Spain (Pius VI – Aug. 13, 1799)
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