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. However, there is an Old Testament matriarch named Rachel.
He was Catholic.
Saint Nicholas of Myra was a Catholic bishop.
Catherine of Siena was a Catholic.
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.
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.
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.
Saint Francis was a Catholic, an ordained Catholic deacon.
Rose of Lima was a Catholic.