The Latin Mass Society of Ireland (LMSI), founded in 1999, is a Roman Catholic society based in Ireland that is dedicated to the preservation of the Tridentine Mass as one of the forms of the Church's liturgy and to making it more widely available. The Society is composed predominantly of lay members and is headed by Nick Lowry. It also includes a number of priests who wish to minister to those who request access to the sacraments in the 1962 form. Its Chaplain is the Very Rev. Michael Cahill of the Meath Diocese.
The Latin Mass Society of Ireland works at promoting the traditional Mass through pilgrimages, Masses and in the press. Its favoured means of communication include its website and an occasional newsletter entitled Traditio Viva.
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Mass is the main Eucharistic liturgical service in many forms of Western Christianity. The term Mass is commonly used in the Catholic Church, Western Rite Orthodoxy, Old Catholicism, and Independent Catholicism. The term is also used in some Lutheran churches, as well as in some Anglican churches, and on rare occasion by other Protestant churches.
The Mass of Paul VI, also known as the Ordinary Form or Novus Ordo, is currently the most commonly used liturgy in the Catholic Church. It was promulgated by Pope Paul VI in 1969 and its liturgical books were published in 1970; those books were then revised in 1975, they were revised again by Pope John Paul II in 2000, and a third revision was published in 2002.
The Tridentine Mass, also known as the Traditional Latin Mass or the Traditional Rite, is the liturgy in the Roman Missal of the Catholic Church codified in 1570 and published thereafter with amendments up to 1962. Celebrated almost exclusively in Ecclesiastical Latin, it was the most widely used Eucharistic liturgy in the world from its issuance in 1570 until the introduction of the Mass of Paul VI.
Traditionalist Catholicism is a movement encompassing members of the Catholic Church and offshoot groups of the Catholic Church that emphasizes beliefs, practices, customs, traditions, liturgical forms, devotions and presentations of teaching associated with the Catholic Church before the Second Vatican Council (1962–65). Traditionalist Catholics particularly emphasize the Tridentine Mass, the Roman Rite liturgy largely replaced in general use by the post-Second Vatican Council Mass of Paul VI.
Quattuor abhinc annos is the incipit of a letter that the Congregation for Divine Worship and the Discipline of the Sacraments sent on 3 October 1984 to presidents of episcopal conferences concerning celebration of Mass in the Tridentine form.
The Latin Mass Society of England and Wales is a Catholic society dedicated to making the Extraordinary Form of the Roman Rite, also known as the Tridentine Mass, more widely available in England and Wales. The group organised a petition for the Latin Mass in England and Wales which the Archbishop of Westminster, Cardinal John Heenan, presented to Pope Paul VI, who granted a papal indult in 1971.
The Fœderatio Internationalis Una Voce or simply Una Voce is an international federation of Catholic lay organizations attached to the Tridentine Mass.
The Roman Rite is the most common ritual family for performing the ecclesiastical services of the Latin Church, the largest of the sui iuris particular churches that comprise the Catholic Church. The Roman Rite governs rites such as the Roman Mass and the Liturgy of the Hours as well as the manner in which sacraments and blessings are performed.
Pre-Tridentine Mass refers to the variants of the liturgical rite of Mass in the West before 1570, when, with his bull Quo primum, Pope Pius V made the Roman Missal, as revised by him, obligatory throughout the Latin Church, except for those places and congregations whose distinct rites could demonstrate an antiquity of two hundred years or more.
Latin liturgical rites, or Western liturgical rites, is a large family of liturgical rites and uses of public worship employed by the Latin Church, the largest particular church sui iuris of the Catholic Church, that originated in Europe where the Latin language once dominated. Its language is now known as Ecclesiastical Latin. The most used rite is the Roman Rite.
The Canon of the Mass, also known as the Canon of the Roman Mass and in the Mass of Paul VI as the Roman Canon or Eucharistic Prayer I, is the oldest anaphora used in the Roman Rite of Mass. The name Canon Missæ was used in the Tridentine Missal from the first typical edition of Pope Pius V in 1570 to that of Pope John XXIII in 1962 to describe the part of the Mass of the Roman Rite that began after the Sanctus with the words Te igitur. All editions preceding that of 1962 place the indication "Canon Missae" at the head of each page from that point until the end of the Mass; that of 1962 does so only until the page preceding the Pater Noster and places the heading "Ordo Missae" on the following pages.
Catholic liturgy means the whole complex of official services, all the rites, ceremonies, prayers, and sacraments of the Church, as opposed to private devotions. In this sense the arrangement of all these services in certain set forms is meant.
The Mass is the central liturgical service of the Eucharist in the Catholic Church, in which bread and wine are consecrated and become the body and blood of Christ. As defined by the Church at the Council of Trent, in the Mass "the same Christ who offered himself once in a bloody manner on the altar of the cross, is present and offered in an unbloody manner". The Church describes the Mass as the "source and summit of the Christian life", and teaches that the Mass is a sacrifice, in which the sacramental bread and wine, through consecration by an ordained priest, become the sacrificial body, blood, soul, and divinity of Christ as the sacrifice on Calvary made truly present once again on the altar. The Catholic Church permits only baptised members in the state of grace to receive Christ in the Eucharist.
The Association for Latin Liturgy is a British lay Catholic organisation which promotes greater use of Latin in the Mass. It was founded in 1969 by Dick Richens who was formerly a member of the Latin Mass Society of England and Wales. Unlike the Latin Mass Society, the Association for Latin Liturgy does not insist on just the Tridentine Mass, but also the Mass of Paul VI in Latin. Indeed, it was because the Latin Mass Society voted not to adopt the New Mass that some members left as they felt that such a move could be considered schismatic. Its stated aims are as follows:
Quo primum is the incipit of an Apostolic constitution in the form of a papal bull issued by Pope Pius V on 14 July 1570. It promulgated the Roman Missal, and made its use obligatory throughout the Latin Church of the Catholic Church, except where there existed a different Mass liturgy of the Latin Church of at least two hundred years standing.
Summorum Pontificum is an apostolic letter of Pope Benedict XVI, issued in July 2007. This letter specifies the circumstances in which priests of the Latin Church could celebrate Mass according to what Benedict XVI called the "Missal promulgated by Blessed John XXIII in 1962" and administer most of the sacraments in the form used before the liturgical reforms that followed the Second Vatican Council.
Traditionis custodes is an apostolic letter issued motu proprio by Pope Francis, promulgated on 16 July 2021 regarding the continued use of pre-Vatican II rites. It restricts the celebration of the Tridentine Mass of the Roman Rite, sometimes colloquially called the "Latin Mass" or the "Traditional Latin Mass". The apostolic letter was accompanied by an ecclesiastical letter to the Catholic bishops of the world.
Liturgical use of Latin is the practice of performing Christian liturgy in Ecclesiastical Latin, typically in the liturgical rites of the Latin Church.
In the Catholic Church, preconciliar Latin liturgical rites coexist with postconciliar rites. In the years following the Second Vatican Council, Pope Paul VI initiated significant changes. Some of Paul VI's contemporaries, who considered the changes to be too drastic, obtained from him limited permission for the continued use of the previous Roman Missal. In the years since, the Holy See has granted varying degrees of permission to celebrate the Roman Rite and other Latin rites in the same manner as before the council. The use of preconciliar rites is associated with traditionalist Catholicism.