Donald Sanborn

Donald J. Sanborn (born February 19, 1950) is a sedeprivationist Roman Catholic bishop, Rector of Most Holy Trinity Seminary in Brooksville, Florida, and major proponent of the thesis of Bishop Guérard des Lauriers.

Donald Sanborn was born into a Roman Catholic family in New York. He became interested in the Catholic priesthood and entered the seminary college in the Diocese of Brooklyn, which he attended until graduating in 1971. Becoming increasingly dissatisfied with the effects of the Second Vatican Council, he entered the SSPX seminary in Ecône, Switzerland. He was ordained to the priesthood in 1975 and was appointed Rector of St. Joseph’s House of Studies in Armada, Michigan, in 1977. He refused to accept the practice of the SSPX concerning conditional ordinations (among other things); hence, in 1983, he was expelled from the SSPX, along with nine other priests including Anthony Cekada and Daniel Dolan.

Sanborn continued to function outside of the SSPX and founded Most Holy Trinity Seminary in 1995. After being consecrated bishop by Bishop Robert McKenna in 2002, he continued to function as Rector of Most Holy Trinity Seminary, which in 2005 was relocated to Brooksville, Florida. He currently continues to train priests at Most Holy Trinity Seminary, which is now one of the largest sedevacantist seminaries in the world, and frequently travels to Europe and around the United States holding conferences promoting sedevacantism.

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