Sedevacantism is a doctrinal position within traditionalist Catholicism, which holds that the present occupier of the Holy See is not a valid pope due to his espousal of one or more heresies and that, for lack of a valid pope, the See of Rome is vacant.
Pierre Martin Ngô Đình Thục was the Roman Catholic Archbishop of Huế, Vietnam, and later a sedevacantist bishop who was excommunicated by the Vatican and allegedly reconciled with the Vatican before his death in 1984. He was a member of the Ngô family who ruled South Vietnam in the years leading up to the Vietnam War. He was the founder of the Dalat University. Today, various Independent Catholic and sedevacantist groups claim to have derived their apostolic succession from Thục.
Traditionalist Catholicism is a movement encompassing members of the Catholic Church and offshoot groups of the Catholic Church, which emphasizes beliefs, practices, customs, traditions, liturgical forms, devotions and presentations of teaching associated with the Church before the Second Vatican Council (1962–1965). Of particular emphasis among Traditionalist Catholics is the Tridentine Mass, a form of the Roman Rite largely replaced in general use by the post-Second Vatican Council Mass of Paul VI.
Daniel Lytle Dolan was an American sedevacantist bishop.
The Congregation of Mary Immaculate Queen is a sedevacantist Traditionalist Catholic religious congregation. The CMRI is dedicated to promoting the message of Our Lady of Fátima and the devotion of the practice of Total Consecration to the Virgin Mary as taught by Saint Louis Marie de Montfort.
The Society of Saint Pius X, also known as the Lefebvrists, is an international fraternity of traditionalist Catholic priests founded in 1970 by Archbishop Marcel Lefebvre, a leading traditionalist voice at the Second Vatican Council with the Coetus Internationalis Patrum and Superior General of the Holy Ghost Fathers until 1968. The society was initially established as a pious union of the Catholic Church with the permission of François Charrière, the Bishop of Lausanne, Geneva and Fribourg in Switzerland. In 2022, the society reached over 700 priestly members, with 1,135 total members.
The Society of Saint Pius V, is a traditionalist Catholic society of priests, formed in 1983, and based in Oyster Bay Cove, New York, United States. The society broke away from the Society of Saint Pius X (SSPX) over liturgical issues.
John Baptist Wu Cheng-chung was the fifth Roman Catholic bishop of Hong Kong and the first cardinal from that diocese. He was a member of the Congregation for the Evangelization of Peoples, the Pontifical Council for Social Communications and the Congregation for Divine Worship and the Discipline of the Sacraments.
Peter Julian Eymard was a French Catholic priest and founder of two religious institutes: the Congregation of the Blessed Sacrament for men and the Servants of the Blessed Sacrament for women.
Clarence Kelly is an American sedevacantist traditionalist Catholic bishop. He is a co-founder of the Society of Saint Pius V and the founder of the Congregation of Saint Pius V.
Mount Saint Michael is a former Seminary, School, Farm and Retreat for the Jesuit order of the Roman Catholic Church in Spokane, Washington. It was later sold to Congregation of Mary Immaculate Queen (CMRI), a Sedevacantist Catholic religious congregation. Sedevacantists are traditionalist Catholics who do not accept the legitimacy of any pope since John XXIII.
The Timon David Fathers, officially known as the Congregation of the Sacred Heart of Jesus is a Roman Catholic religious congregation of pontifical right. It was founded in 1852 by Joseph-Marie Timon-David.
Daniel Quilter Brown was an American Old Catholic bishop turned Traditionalist Catholic sedevacantist.
The Council of Major Superiors of Women Religious (CMSWR) is one of two associations of the leaders of congregations of Catholic women religious in the United States. As of December 2020, CMSWR includes the leaders of 112 religious congregations which have a total membership of approximately 5,700 women religious in the United States.
Mother Mary Cleophas Foley, S.P., was the Superior General of the Sisters of Providence of Saint Mary-of-the-Woods, Indiana from 1890 to 1926. During her time in office, she completed the building of the Church of the Immaculate Conception and built numerous other buildings at Saint Mary-of-the-Woods, Indiana, including a new Providence Convent, the Blessed Sacrament Chapel, and an infirmary.
This is a glossary of terms used within the Catholic Church. Some terms used in everyday English have a different meaning in the context of the Catholic faith, including brother, confession, confirmation, exemption, faithful, father, ordinary, religious, sister, venerable, and vow.
Donald J. Sanborn is an American sedevacantist bishop who is known for his advocacy of sedevacantism and sedeprivationism. He currently serves as the superior general of the sedevacantist Roman Catholic Institute (RCI) and rector of the sedevacantist Most Holy Trinity Seminary, which was relocated to Reading, Pennsylvania, United States, in 2022.
Moisés Carmona Rivera was a sedevacantist traditionalist Catholic bishop from Acapulco, Guerrero, Mexico, who propagated sedevacantism in Mexico. He was one of the bishops consecrated by the Vietnamese sedevacantist bishop Ngô Đình Thục.
Martín Dávila Gandara is a Mexican Catholic sedevacantist bishop. He is the bishop of the Sociedad Sacerdotal Trento.
