He lived in Rome during the reign of Diocletian. He was slave to Aglais, the daughter of a Senator, and served as steward of her household and her large fortune. He also lived in fornication with her, and was addicted to drink. Despite these sins, he was kind, hospitable to strangers, and generous toward the needy.
In time, Aglais became troubled in her conscience over her way of life, and began to think of the account that she would have to give to God for her sins. Some Christians told her of the holy Martyrs and, moved by their accounts, she ordered Boniface to travel to Tarsus and bring back relics of these holy ones. Boniface, still deaf and blind to the things of God, said jokingly, "And will you honor me as a Saint if I bring back my own body to you as a relic?"
Boniface traveled to Tarsus with a large escort, well supplied with gold. He went straightaway to the Amphitheater, where he beheld a number of Martyrs being subjected to awful torments for the pleasure of the crowd,