Rachel was an Old Testament Jewish Matriarch. While she is a saint, Old Testament personages are usually not accorded the title of saint.
There is no Saint Rachael specifically recognized in the Catholic Church. The name "Rachel" is of biblical origin but does not have a specific saint attributed to it in Catholic tradition.
He was Catholic.
Saint Nicholas of Myra was a Catholic bishop.
Catherine of Siena was a Catholic.
There is no Saint Rachel recognized by the Catholic Church or any other major Christian denomination. It's possible that the reference to Saint Rachel may be a cultural or local tradition not universally recognized in the wider Christian community.
Saint Sophia is not a religion, but rather a saint in the Orthodox Christian tradition. She is venerated in both the Eastern Orthodox Church and the Roman Catholic Church as a martyr.
St. Sebastian is a Catholic Saint; therefore, he was Christian.
Saint Cecilia was a Christian. She is known as the patron saint of musicians and is celebrated in the Catholic Church.
Gregory is recognized as a saint in the Orthodox religion but not in the Catholic.
Joan of Arc was a Catholic.
Rachel became a saint through the process of canonization by the Catholic Church. This involves a thorough investigation into her life, virtues, and any miracles attributed to her intercession. After being declared venerable, blessed, and finally a saint, Rachel is officially recognized as a saint by the Church.
Saint Francis was a Catholic, an ordained Catholic deacon.