Martyrdom
The sources that name Petronia record only that she suffered death by the sword for Christ. The Greek synaxaria preserve a brief commemorative distich associated with her: that she bent her head to the sword while fixing the eyes of her soul on the divine rock — a couplet describing the manner of her death and her steadfastness rather than supplying any narrative of her trial.
Beyond this, no account of her arrest, the place of her suffering, or the persecution under which she died survives. She is classed among the early Christian martyrs and the female saints of the Church.