The Heresy of Sedeprivationism

Webpage by Lúcio Mascarenhas, Bombay.
See also The Heresy of Robert McKenna & Donald Sanborn's Strange New Religion.
Sedeprivationism is an ideological school or party of the "Traditionalist Catholic" movement that follows the principles of the late French theologian Michel Louis Guérard des Lauriers, O.P., as Des Lauriers set it out in his thesis published in the "Cahiers du Cassiciacum" and therefore commonly called the "Cassiciacum thesis". Des Lauriers later also went under the name "Fr. Bernard Lucien".

[Cassiciacum was the garden in which St. Augustine of Hippo had his conversion experience].

According to Des Laurier's thesis, the Roman Modernist Antipopes Roncalli or John XXIII-II, Montini or Paul VI, Luciani or John-Paul I, Wojtyla or John-Paul II and Ratzinger or Benedict XVI were or are defective popes in that, due to their espousal of the Modernist heresy, their consent to become pope was faulty or defective, so that they became potentially pope, but did not actually attain to the papacy or enter into the Papal office in a full and true manner, but can be called "crippled", crippled by their heresy and therefore defective assent. This idea is also described in another manner by saying that they became pope materially but not formally, or Des Lauriers' Latin formula "papa materialiter non formaliter".

Two consequences flow out of Des Lauriers' thesis:
  1. There is no real sede vacante, since these men fill the role of potential popes;

  2. If these potential popes recant from Modernism and return to Catholicism, they will complete the process and attain to the fullness of the papacy.
Sedevacantists reject Laurier's thesis as a false half-house designed to lock Catholic recusants against Modernism into subjugation to the very men, Modernist heretics, whom they perceive as being formal agents and representatives of evil, as being formal and pertinacious Modernist heretics, and as contradicting Catholic canon law that inflicts automatic excommunication and the impossibility of attaining to any Church office (Corpus Iuris Canonici, 1917 & Cum ex apostolatus officio).

Sedevacantists also deny that these men, if they convert to Catholicism, will automatically attain to the papacy, becoming lawful Catholic popes.

According to Sedevacantists, Sedeprivationism is premised on the false understanding that the post-1958 "popes" espouse heresies that were never before formally condemned and therefore, as in the case of Pope John XXII, they have the benefit of doubt until the Church formally pronounces these heresies proscribed.

On the contrary, Sedevacantists point out, all Traditionalist Catholics are fully aware that these errors are word-to-word identical to those proscribed under Pope Pius IX's Syllabus of Errors and under Pope Pius X's legislations, and many other formal dogmatic pronouncements and legislations of the Church, such as those of the Council of Florence and the Council of Trent, so that no excuse can be made or entertained, and Catholics are obliged to act towards these "popes" in accordance with Pope Paul IV's legislation, Cum ex apostolatus officio.

The "Sedeprivationism" and "Sedeprivationist" labels were coined by the late English Sedevacantist William J. Morgan. Other names are "Guérardism" and "Guérardists" and "Cassiciacanism" and "Cassiciacanists".

Besides the late Guerard des Lauriers, Bishops Robert McKenna and Donald Sanborn in the U.S.A., and Bishop Geert Jan Stuyver in the Belgian Flanders, and Fr. Francesco Ricossa and his "Instituto Mater Bonii Consilii" (alternative name "Sodalitium Pianum"), to which Bishop Stuyver also belongs, in the Belgian Flanders, Germany, and in the cities of Turin and Rome in Italy, represent this school.

Dr. Eberhard Heller, a German Sedevacantist, and who had, with the late Dr. Hiller, sought to guide Bishop Peter Martin Ngo Dinh Thuc towards the "Traditionalist Catholic" movement, and who persuaded him to consecrate first Des Lauriers, and after Des Lauriers' regression to the Sedeprivationist heresy, the Mexicans Moises Carmona and Adolfo Zamora, is a fiery critic of Sedeprivationism, and has denounced it and Des Lauriers through his newsletter "Einsicht" (which means either "Unity" or "Oneness"); see Heller's Denunciation of Sedeprivationism & Des Lauriers.

Bishop Daniel Dolan, who claims to be a Sedevacantist and not a Sedeprivationist, nevertheless cooperates with the Sedeprivationist Donald Sanborn, and they jointly operate a seminary, the "Most Holy Trinity Seminary", at Brooksville, Florida.

Given the ideological incompatibilities between Dolan's Sedevacantism and Sanborn's Sedeprivationism, this cooperation constitutes the crime of Ecumenism or Eclecticism, or "Traditionalist Catholic" Ecumenism, which is ironical, given that the "Traditionalist Catholic" movement is based on a fundamental rejection of Ecumenism by the Modernists!
PUBLISHED on the Internet: December 3, 2005; Revised August 28, 2006.


Written with the purpose of educating people in matters concerning the Catholic Resistance to the Modernist Apostasy, and based on the principles elucidated by the Church, that the truth is never afraid, and that the Church is never afraid of the Truth, and on the principles elucidated by Frs. Rumble & Carty and by Fulton Sheen in his essay, "The Art of Controversy". — Benedicamus Deus, Lúcio.

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Lúcio Mascarenhas

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