Archabbot Boniface Wimmer Assumption Abbey Saint Procopius Abbey Newark Abbey Belmont Abbey Saint Leo Abbey Saint Anselm Abbey Saint John's Abbey Saint Benedict's Abbey Saint Vincent Archabbey

Founded 1855, the American-Cassinese Congregation is a Catholic association of Benedictine monasteries.

The Congregation includes 25 monasteries; 19 are autonomous monasteries and 6 are dependent priories. Our monasteries are located in 15 of the United States, Puerto Rico, Brazil, Canada, Colombia, Mexico and Taiwan.

Abbot Boniface Wimmer OSB, founder of Saint Vincent Archabbey in Latrobe, Pennsylvania, created the Congregation. Pope Pius IX erected it as a monastic congregation under the patronage of the Holy Guardian Angels.

Our monasteries follow the Rule written by Saint Benedict of Nursia (480-547).

Please email us at webmaster@amcass.org about the website with any questions, comments, suggestions, or edits.



Upcoming Events

Synod on Synodality

2023 Synod 2021 2023

Earlier this summer, the Vatican’s Congregation for Institutes of Last week, the General Secretariat for the Synod of Bishops released several documents in preparation for the 2023 Synod Bishops, with the theme of “For a synodal Church: communion, participation, mission.” The Preparatory Document is “a tool to facilitate the first phase of listening to and consulting the People of God in the particular Churches.” The Vademecum is the handbook for listening and discernment in local churches, with a focus on the work of the Diocesan Contact Team.

Earlier this summer, the Vatican’s Congregation for Institutes of Consecrated Life and Societies of Apostolic Life invited conferences of religious from around the world to participate in the synodal journey by seeking and providing input in preparation for the Synod. Specifically, Cardinal João Braz de Aviz, prefect of CICLSAL, has asked to provide feedback in Spring 2022. In doing so, he notes that “To ensure the synodal church is not a mirage, but rather a dream to be realized, it is necessary to dream together, to pray together, and to work together.”

Meeting of North American Abbots

February 2-6, 2024

The annual meeting of abbots will take place at Prince of Peace Abbey in Oceanside, CA from February 2-6, 2024. The two presenters are Father David Songy, O.F.M.,Cap., Ph.D and Abbot Lawence Staszysen, O.S.B. on “Formation and Technology.” View the registration form and schedule.

Congress of Abbots 2024 - Save the Date

September 10-19, 2024

Abbot Primate Gregory Polan, O.S.B. has announced the dates of the Congress of Abbots at Sant'Anselmo in Rome to be on September 10-19, 2024 inclusive (with September 9 and 20 as travel days). The Congress will also include the election of the Abbot Primate. The Synod of Abbots President will finalize the schedule and program when they meet on August 27 through September 3, 2023. For more information at this time, contact the curia of the Abbot Primate: curia@anselmianum.com For more information on registration, accommodations, etc: