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Forms & Documents:

To start the process of getting married at the Cathedral you must be an active and participating parishioner and registered for at least six months. Call the office to speak to a priest at (406) 442-5825

Q. What is the sacrament of Matrimony?

A. The Sacrament of Matrimony is the Sacrament that unites a Christian man and woman in lawful marriage. 1

The matrimonial covenant, by which a man and a woman establish between themselves a partnership of the whole of life, is by its nature ordered toward the good of the spouses and the procreation and education of offspring; this covenant between baptized persons has been raised by Christ the Lord to the dignity of a sacrament. 2

The Cathedral of St. Helena offers two seven-week marriage preparation sessions - Fall and Winter. Once an engaged couple decides to celebrate their marriage in the Roman Catholic Church, their first step is to contact the Parish office.  A minimum of six months is required between the initial contact with the parish and the wedding date. During the six months, you will be required to participate in a marriage preparation process.  Our next sessions dates are TBD at this time. 

The seven weekly sessions cover the topics:

  • Sacrament

  • Domestic Church

  • Communication

  • Finances

  • Intimacy

  • Natural Family Planning (NFP)

  • Parenting

  • The Wedding Ceremony

The couples will have a chance to journal, dialogue, and really process the idea of a sacramental marriage in a relaxed format. A dedicated team of married couples lead the various sessions and share their own experiences of marriage. 

Sacramental Prep for Couples in Civil Unions

To sign up for marriage prep or convalidation call the Cathedral office at (406) 442-5825 and contact

Miriam Brower at

1 Baltimore Catechism, 1005

2 Catechism of the Catholic Church, 1601

3 Reasons to have a Sacramental Marriage
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