Sacerdos Institute

Offering integral on-going formation for Catholic priests and ministers

What We Offer

Holy Land Priestly Renewal

A priests’ life can be very demanding, whether it be celebrating the sacraments or administrating a parish. However, each priest must strive to keep his experience of Christ’s love in his life fresh since this is the source of his vocation. A great way to renew your experience of Christ and your priesthood is by walking in HIS footsteps with the Holy Land Priestly renewal. There are two renewals offered a year, one in January and one in July.
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Exorcism and Prayer of Liberation Course

Given the rise of demonic cases and the ever more available access and dabbling with Ouija boards, tarot cards and black magic, Pope John Paul II decreed that every Catholic diocese must have a trained exorcist. The Sacerdos Exorcism and prayer of liberation course seeks to equip the participants with an understanding of the theoretical and practical matters concerning exoricism and demonic possession. The course touches on the anthropological, phenomenological, theological, pastoral and spiritual aspects of these phenomenon. This course is principally destined towards Catholic priests but is also open to laity.
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Seminary Formators Course

All priests are prepared to serve God’s people. However, few priests are trained to be a seminary formator. As a response to the need of those that work in seminaries to update and inform themselves on seminary pedagogy, Sacerdos Institute organizes a month long course that deals with the most important themes of seminarian formation. From seminary psychology and human development to spirituality and apostolic formation.
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We Have Helped

Different Countries

Different Diocese


About Us

Sacerdos Institute is an international center for the spiritual, theological and pastoral ongoing formation of the priests
Affiliated with the Pontifical Atheneum Regina Apostolorum

Our Team

Fr. Pedro Barrajón, LC

Director of Sacerdos Institute

Professor of Dogmatic Theology at the Regina Apostolorum Pontifical Athenaeum of Rome. Former rector of Regina Apostolorum Pontifical Athenaeum (2006-2013). Specializations in: Theological anthropology, dialogue between science and faith, Theology of demons and exorcism and Theology of the body. Full Curriculum Vitae and Publications

Fr. Alex Yeung, LC

Academic Director

Dean and professor of Faculty of Philosophy, Regina Apostolorum Pontifical Athenaeum.

Former director of Sacerdos Institute for Priestly Life and Ministry (USA), 2003-2012.

He is also Spiritual Director for the Legionaries of Christ, Center for Higher Studies.

Maria Chiara Petrosillo


Graduated in Contemporary History, she has been organizing the Formation Courses of Sacerdos Institute since 2012.

She is also in charge of the permanent exhibitions of the Shroud of Turin at Pontifical Athenaeum Regina Apostolorum of Rome.

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Address: Via degli Aldobrandeschi 190, 00163 Roma Phone: +39 3408466025 E-Mail: Follow Us!