Clement of Rome was an early Christian leader and the fourth pope, traditionally believed to have served from around 88 to 99 AD. He is best known for his letter, known as the First Epistle of Clement, which addressed issues of church leadership and unity among Christians in Corinth. This letter is one of the earliest Christian writings outside the New Testament. Clement is often regarded as a significant figure in the development of early Christian theology and church organization. His teachings emphasized the importance of humility, obedience, and the role of the church in guiding believers. He is venerated as a saint in both the Roman Catholic and Eastern Orthodox traditions.