The Legendary Acta
Potitus belongs to the large class of early martyrs whose memory was preserved and elaborated long after their deaths. The principal narrative source is a Passio Sancti Potiti generally dated to the ninth century, several centuries after the second-century setting it describes; for this reason the dramatic episodes it contains — the boy's wonders, the healing of the emperor's daughter, the failed execution by lions and boiling oil — are treated by modern accounts as legendary rather than verifiable.
The geographical traditions surrounding him are likewise tangled. Some accounts associate him with Sardinia, others with Apulia in southern Italy where his cult is strongest, and one strand of the tradition even names a birthplace in Thracia; these are not easily reconciled. What is consistent across the sources is the figure of a young convert from a rich pagan household who confessed Christ under Antoninus Pius and died a martyr.