St. Clement is a title associated with several saints in Christian tradition, most notably St. Clement of Rome, who is believed to have been the fourth pope and a disciple of St. Peter. He is known for his letter to the Corinthians, which is one of the earliest Christian writings outside the New Testament. His feast day is celebrated on November 23. Another notable figure is St. Clement of Alexandria, an early Christian theologian and philosopher. He contributed significantly to the development of Christian thought and is known for his works that sought to harmonize Greek philosophy with Christian teachings. His feast day is observed on December 4.