Italian Dominican theologian Saint Thomas Aquinas was the foremost medieval Scholasticist and father of the Thomistic school of theology.
St. Thomas Becket, England’s Archbishop of Canterbury, refused to give King Henry II power over the church. He was murdered in 1170 and became a saint in 1173.
St. Frances Xavier Cabrini founded the Missionary Sisters of the Sacred Heart of Jesus and helped Italian-American immigrants. She was canonized in 1946.
St. John Chrysostom was archbishop of Constantinople and an important early church father.
St. Martín de Porres is the patron saint of interracial harmony, known for his social work and miraculous healing powers.
Saint John Fisher was a Roman Catholic bishop and cardinal who was martyred when he resisted King Henry VII's encroachments on the Church.
First appearing in the gospels of Matthew and Luke, St. Joseph was the earthly father of Jesus Christ and the husband of the Virgin Mary.
Thomas More is known for his 1516 book Utopia and for his untimely death in 1535, after refusing to acknowledge King Henry VIII as head of the Church of England. He was canonized by the Catholic Church as a saint in 1935.
Mother Teresa was the founder of the Order of the Missionaries of Charity, a Roman Catholic congregation of women dedicated to helping the poor.
St. Philip Neri was best known as an Italian priest who helped his congregation and others in need. He was canonized in 1622.
St Clare of Assisi was one of the first followers of Saint Francis of Assisi. She became the abbess of the convent of San Damiano, near Assisi in 1216. In 1958 she was declared the Patron of television.
St. Bernadette of Lourdes was best known as a saint who received visions from the Virgin Mary in a cave near Lourdes. Pope Pius XI canonized her as a saint in 1933.
St. Catherine of Siena was a Dominican tertiary who worked to return the papacy from France to Italy. She is one of two patron saints of Italy.
St. John of the Cross was a Spanish poet whose work is considered the summit of mystical Spanish literature. He was glorified as a saint in 1726 by Pope Bendict XIII.
St. Polycarp was a 2nd century Greek bishop whose Letter to the Philippians formed the basis of Christian literature.
Saint Bartholomew was one of the Twelve Apostles of Jesus Christ who was martyred in the 1st century AD.
Apostle Saint Mark was one of Christ's 70 disciples, one of the four evangelists and the traditional author of the second Gospel, The Book of Mark.
St. Elizabeth Ann Seton was an activist and advocate for the poor in the 18th to 19th centuries who established the group Sisters of Charity.
One of the Twelve Apostles, Saint Andrew is the Catholic patron saint of fisherman who founded the Church of Byzantium. He was a disciple of John the Baptist.
St. Helena, the mother of Constantine the Great, was said to have discovered the cross of Christ.
St Jerome was a 4th-century religious scholar and ascetic who’s responsible for the Vulgate, the Catholic Church’s Latin version of the Bible’s Old Testament.
During his papacy, St. Leo I strove to suppress heresy and presented a clear doctrine of Christ’s incarnation that successfully promoted orthodoxy.
St. Matthew was best known as one of the 12 disciples of Jesus and the first author of the Gospel.
St. Stephen is recognized as a saint and the first martyr in Christian theology. He was condemned for committing blasphemy against the Jewish Temple, and was stoned to death circa the year 36.
St. Francis of Assisi abandoned a life of luxury for a life devoted to Christianity after reportedly hearing the voice of God, who commanded him to rebuild the Christian Church and live in poverty. He is the patron saint for ecologists.
St. George, Christian patron saint of England, was made known there by Arculpus and Adamnan. In a famous tale, he rescued a Libyan princess from a sea monster.
St. John the Baptist was a Jewish prophet who preached the imminence of God's final judgment, had several disciples and baptized a number of people.
St. Nicholas was a Christian bishop who provided for the poor and sick, and is the basis for the popular character of Santa Claus.
St. Patrick is Ireland's patron saint, known for spreading Christianity throughout the country as a missionary during the 5th century.
One of the Twelve Apostles, St. Thomas or “Doubting Thomas” was initially skeptical about Jesus’ resurrection, but later proclaimed Jesus, “My Lord and My God.”