Elisabeth Catez was born on July 18, 1880 in the army camp of Avor near Bourges in France and was baptized four days later. In 1887 the family moved to Dijon; That same year her father died.

On April 19, 1890, she received her First Holy Communion, the following year the sacrament of Confirmation. In 1894 she made the private vow of virginity. Feeling called to the religious life, she asked her mother for permission to enter Carmel: she could only succeed when she came of age. On August 2, 1901, Elisabeth entered the Carmel of Dijon where on December 8, 1901 she took the religious habit, taking the name of Sister Elizabeth of the Trinity..

A few months after making her religious profession, which took place on January 11, 1903, she developed symptoms of Addison's disease: she accepted it with a smile, certain that she was immersed in the union of the Three Divine Persons. She died at the age of twenty-six on November 9, 1906.

The beatification ceremony was held on September 25, 1984. The solemn canonization ceremony on October 16, 2016.