⛪ Most Holy Trinity Seminary - Publications


Most Holy Trinity Seminary was founded in 1995 in a building which it shared with Mary Help of Christians Academy in Warren, Michigan. Since it was necessary that the seminary function in its own quarters, Most Holy Trinity Seminary acquired 50 acres of land in 2003 near Brooksville, Florida (about 50 minutes north of Tampa), with a view towards constructing a new building and relocating its operations there. Construction began in April 2005. In April of 2008, the Seminary officially opened its doors in the new facility.

Ten years later, the Seminary facility had grown too small, and there was a need to seek a new building with more rooms. In 2020, a suitable building was found in Reading, Pennsylvania, fitting the needs of the Seminary and the increased room capacity. It took over two years of remodeling and repairs to bring the building up to code. The Seminary moved into the new location in late 2022.

The current rector is Bishop Donald J. Sanborn, who is also the founder and superior general of the Roman Catholic Institute (RCI), the group associated with the seminary. He remains in the position, although the seminary relocated to Reading, Pennsylvania, in the fall of 2022, continuing its operations in its own facilities after acquiring land in Brooksville in 2003 and inaugurating the building in 2008.

⭐Featured Articles 

Can Novus Ordo Baptisms be Trusted as Valid?
by Most Rev. Donald J. Sanborn
The position of the Roman Catholic Institute regarding Novus Ordo baptisms. Supplementary material: here.

On the New Ecclesiology
by Rev. Damien Dutertre

On Collegiality
by Rev. Damien Dutertre

The Errors of the Recognize and Resist System
by Rev. Damien Dutertre

The Little Catechism on the Thesis
by Rev. Nicolás E. Despósito
A summary of the position known as the Cassiciacum Thesis. En Español PDF.

On the Heretical Pope
by Rev. Damien Dutertre

Answers to the Objections Based on the Universal Peaceful Acceptance
by Rev. Damien Dutertre

On the Canonical Crime of Heresy in Relation to the Thesis
by Rev. Damien Dutertre

The New Doctrine of Vatican II
by Rev. Michael DeSaye

Is the Sedevacantist Apostolate Legitimate?
by Rev. Nicolás E. Despósito
How is the missio Ecclesiae being carried out today? Download PDF.

📜 Thesis of Cassiciacum

Explanation of the Thesis of Bishop Guérard des Lauriers
by Most Rev. Donald J. Sanborn

Ecclesiastical Materialism
by Most Rev. Donald J. Sanborn

De Papatu Materiali - Pars Prima
by Most Rev. Donald J. Sanborn

De Papatu Materiali - Pars Secunda
by Most Rev. Donald J. Sanborn

On Being a Pope Materially
by Most Rev. Donald J. Sanborn

💧 Sacraments

Can Novus Ordo Baptisms be Trusted as Valid?
by Most Rev. Donald J. Sanborn
Supplementary material: here.

Absolutely Null & Utterly Void
by Rev. Anthony Cekada

Still Null & Still Void
by Rev. Anthony Cekada

Untrained and Un-Tridentine: Holy Orders and the Canonically Unfit
by Rev. Anthony Cekada