Saint martyr Hieron was born in the city of Tiana, Cappadocia, to a pious mother, Stratonika, during the time of persecutions against Christians under the emperors Diocletian and Maximian. He refused to serve in the army of the pagans and, showing courage, defeated the soldiers sent after him. Hieron hid in a cave with eighteen Christians but was betrayed by his friend Kyriakos, who persuaded him to surrender.
In Melitene, Hieron and the other Christians were imprisoned, where he urged them not to worship idols, but rather to die for Christ. At the trial, he boldly confessed his guilt and was severely punished. His hand was cut off, and the other martyrs were tortured.
After the execution, Hieron and his companions, rejoicing, sang psalms. Their heads were cut off, and only thanks to the generosity of Chryzafios, who redeemed Hieron's head, it was buried with honor. Hieron's mother, receiving his severed hand, mourned but also rejoiced that her son became a martyr for Christ.
Saint Hieron left a will in which he cared for his mother and sister, and his holy remains were respectfully buried by the Christians. A church was built on the site of his martyrdom, where his head was laid to rest.
