Bishop of Rome (Pope) · c. 42 by tradition (Peter's arrival; his martyrdom c. 64–67)
The see of Peter and Paul, where both apostles bore their final witness under Nero. Its bishops' list runs unbroken from Linus, and by this era's end the church of Rome had become the touchstone of communion for the whole West. Within this dataset the line runs from Peter to Leo IX (†1054), whose legates carried the bull of 1054 to Constantinople.
Continues today as the papacy of the Catholic Church — the longest continuously documented succession in this dataset.
153 holders in the record.