Some Catholics like old ways. 

Some Catholics like old ways. 
Many people follow these old customs. They like the old ways of teaching. Some people even dress in a modest style. They do this to show their faith.
Some groups do not follow the Pope. They may choose their own leaders. These groups have many different ideas. They want to keep the old ways alive.
One group is called the SSPX. They use the old Latin Mass. They started a long time ago. They want to keep things the same.
Other groups have different names. Some believe the seat of the Pope is empty. This is a very big idea. It is a way to show they disagree. 
Traditionalist Catholicism is a movement within the Catholic Church. Many followers want to keep old ways of prayer and belief. They focus on things from before the Second Vatican Council. This council happened between 1962 and 1965. 
Many traditionalists love the Tridentine Mass. This is an older way to say Mass in Latin. Some people dislike the changes made after the council. They may also prefer modest dress or different views on gender roles.
Some groups are not in union with the Pope. These are often called radical traditionalists. One group is the SSPX. It was started by Archbishop Marcel Lefebvre in 1970. 
Other groups have very different ideas. Sedevacantists believe the seat of the Pope is empty. They think recent Popes are not true leaders. Conclavists are people who elect their own Popes. 
Other groups stay in union with the Pope. They use the old Mass with his approval. The Priestly Fraternity of Saint Peter is one such group. They follow the current Pope while using old ways.
Traditionalist Catholicism is a movement focused on the beliefs and customs of the Catholic Church. These followers emphasize the ways people prayed and taught before the Second Vatican Council. That council took place between 1962 and 1965. 

There are different ways these groups relate to the current Pope. Some traditionalists follow the Pope but use older practices. These groups are often in full communion with the Holy See. The Priestly Fraternity of Saint Peter is one such example. They celebrate the Tridentine Mass with official approval. Other groups are seen as being outside of this communion. These are sometimes called radical traditionalists. They may reject the current leadership of the Church. This creates a divide between different types of traditionalists. 
History shows how these different groups began to form. In 1965, Father Gommar DePauw started the Catholic Traditionalist Movement in New York. Later, in 1970, Archbishop Marcel Lefebvre founded the Society of Saint Pius X (SSPX). He wanted to preserve the Traditional Latin Mass. In 1973, two priests named Francis E. Fenton and Robert McKenna founded the Orthodox Roman Catholic Movement. This group set up chapels across North America. These leaders often faced disagreements with their bishops. Some priests even had to take a leave of absence from their jobs.
Some groups hold very strong and different beliefs about the papacy. Sedevacantists believe the seat of the Pope is currently empty. They think recent Popes are not true leaders. One group, the Congregation of Mary Immaculate Queen, formed in 1967. Another group is the Society of Saint Pius V, which started in 1983. There are also sedeprivationists like the Istituto Mater Boni Consilii. They believe a person can be a Pope but lack authority. Finally, Conclavists choose to elect their own Popes. These people are not considered serious claimants by most.
These different views show how people interpret religious change. Pope Benedict XVI spoke about how to view the Second Vatican Council. He talked about the difference between seeing a break in tradition or seeing reform. Pope Francis also shared his thoughts on this topic in 2016. He suggested that true fidelity includes growth over time. He believed that faith can deepen and consolidate itself as years pass. This shows that even within one religion, people can have many different ideas. They all wonder about the best way to keep their traditions alive.
Traditionalist Catholicism is a movement within the Catholic Church. It emphasizes the beliefs, customs, and liturgical forms used before the Second Vatican Council. This council took place between 1962 and 1965. 
To understand this movement, one must look at how different groups relate to the Pope. Some traditionalists are canonically regular. This means they accept the documents of the Second Vatican Council. They view the changes as legitimate but prefer older forms with official approval. The Priestly Fraternity of Saint Peter (FSSP) is a notable example. They celebrate the Tridentine Mass while remaining in full communion with the Holy See. Other organizations, like the Institute of Christ the King Sovereign Priest, also operate this way. These groups are considered part of the official Catholic Church.
Other groups are often called radical traditionalists. These groups are not in communion with the Pope or the Holy See. One major group is the Society of Saint Pius X (SSPX). It was founded in 1970 by Archbishop Marcel Lefebvre. He wanted to preserve the Traditional Latin Mass against liberal influences. In 1988, Lefebvre consecrated four men as bishops without papal permission. This led to automatic excommunication for the six men involved. While Pope Benedict XVI lifted these excommunications in 2009, the SSPX still holds an irregular canonical status. The Vatican has, however, granted their priests certain authorities for confessions and marriages.
Some traditionalists hold even more extreme views regarding the papacy. Sedeprivationists believe a person can be a duly elected Pope but lack true authority. They argue that the current occupant cannot teach or govern unless he recants Vatican II changes. The Istituto Mater Boni Consilii (IMBC) is a sedeprivationist congregation. They believe Popes from John XXIII onward fall into this category. Another group, the Roman Catholic Institute (RCI), also holds this view. These groups disagree with the SSPX because the SSPX still acknowledges the Pope's existence.
Sedevacantists hold a different, more absolute position. The term comes from the Latin "sede vacante," meaning the chair is vacant. They believe that recent Popes are heretics and therefore cannot be true Popes. Because of this, they believe the current seat of Peter is empty. This position can lead to excommunication because it is seen as an act of schism. The Congregation of Mary Immaculate Queen (CMRI) is one such group. It was formed in 1967 and operates in North America, South America, Europe, and Asia. Another group, the Society of Saint Pius V (SSPV), split from the SSPX in 1983.
There is also a practice known as Conclavism. Conclavists believe that all recent occupants of the papal see are not true Popes. Because of this, they elect their own leaders and propose them as the true Popes. Most people do not consider these individuals to be serious claimants to the papacy. These groups represent a very small minority within the broader traditionalist movement. They stand in sharp contrast to the groups that seek official recognition from the Vatican.
History shows how these divisions grew from the Second Vatican Council. In 1965, Father Gommar DePauw formed the Catholic Traditionalist Movement in New York. In 1973, Francis E. Fenton and Robert McKenna founded the Orthodox Roman Catholic Movement. This group established chapels across North America to preserve the Tridentine Mass. These early efforts show a growing desire to maintain older traditions. The tension between preserving the past and accepting new reforms remains a central theme in the history of the Church. 

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