Clement I
Bishop of Rome and Apostolic Father (papacy c. 88–99, died c. 99), traditionally regarded as the third or fourth successor of Saint Peter at the head of the Roman Church, although ancient sources disagree on the exact order of the early bishops of Rome and on the biographical details of his life, of which virtually no reliable data survives beyond his epistolary authorship. He is known chiefly for the First Epistle to the Corinthians (known as 1 Clement), a lengthy letter addressed to the Christian community of Corinth to settle an internal conflict in which some younger members had removed several legitimately appointed presbyters (elders), a document that constitutes, together with the New Testament itself, one of the oldest surviving witnesses of Christian literature outside the biblical canon, generally dated to around AD 96. The letter is of exceptional historical importance for several reasons: it contains one of the earliest explicit formulations of the idea of apostolic succession, whereby ecclesial authority is legitimately transmitted from the apostles to later bishops and presbyters through an unbroken chain of appointments; it also offers one of the earliest external testimonies to the martyrdom of Saints Peter and Paul in Rome; and the text already reflects an early concern with hierarchical order and ecclesiastical discipline that anticipates the Church's later episcopal organisation. Various later traditions, not historically confirmed, identify Clement with the companion of Paul mentioned in the Epistle to the Philippians, and medieval legend attributes to him a martyrdom by drowning in Crimea under the emperor Trajan, though modern historical criticism considers this hagiographic narrative to be probably legendary. Clement is venerated as a saint in both the Catholic and Orthodox Churches, and his letter continues to be studied as an indispensable primary source for understanding the organisation and internal tensions of first-century Christianity.