Pope Saint Telesphorus was the Bishop of Rome from c. 126 to his death c. 137, during the reigns of Roman Emperors Hadrian and Antoninus Pius. He was of Greek ancestry and born in Terranova da Sibari, Calabria, Italy.
Telesphorus is traditionally considered as being the seventh Roman bishop in succession after Saint Peter. The Liber Pontificalis mentions that he had been an anchorite (or hermit) monk prior to assuming office. According to the testimony of Irenæus (Against Heresies III.3.3), he suffered a "glorious" martyrdom. Although most early popes are called martyrs by sources such as the Liber Pontificalis, Telesphorus is the first to whom Irenaeus, writing considerably earlier, gives this title.