Some Roman Catholic saint names are St. Augustine of Hippo, St. Thomas Aquinas, St. Cecilia, St. Gianna Molla and St. Pope John Paul II. These saints span from the early days of the Church to the beginning of the third millennium A.D.
St. Augustine of Hippo was a bishop and theologian in the fourth and fifth centuries A.D. Many consider him one of the most important theologians in Church history. Having led a wayward life in his early years, he later converted to Catholicism and wrote extensively on doctrine, sacramental theology, morality and the refutation of heresy. Important works include "Confessions," "City of God" and "The Trinity."
Another major theologian was St. Thomas Aquinas, a member of the Dominican Order in the 13th century. St. Thomas sought to harmonize the Catholic faith with compatible elements of Aristotelian philosophy, and among the topics he wrote about were the existence of God, the Trinity and grace. His most important work was the "Summa Theologica."
St. Cecilia was an early Christian martyr of the Romans. Having vowed her virginity to God early in life, she refused marriage and was later killed. Catholics venerate her as the patron saint of music.
St. Gianna Molla was born in 1922 and later became a doctor. She married Pietro Molla in 1955 and went on to have several children. St. Gianna later had a life-threatening pregnancy but chose to give her life so that her child could live.
St. Pope John Paul II was pope from 1979 until his death in 2005. His papacy saw the downfall of the Soviet Union and a failed assassination attempt on his life. Pope John Paul II wrote extensively on issues such as marriage and family, the Blessed Virgin Mary and the Eucharist.