Holy Martyr was born in Mantineia, located in the metropolis of Claudiopolis and the diocese of Honorias. Captured by pagans for his faith in Christ, he was brought before the governor Urban in the city of Claudiopolis, where he declared himself a Christian during the interrogation and was imprisoned. After the second interrogation, remaining faithful to Christ, he was subjected to cruel tortures: he was beaten with rods, scraped with iron instruments, and then beaten again and dragged through the city. Upon reaching the city gates, the holy martyr marked himself with the sign of the cross and heard a voice proclaiming to him a joyful future, after which he surrendered his spirit to the Lord. His martyr's death is dated to the time of Diocletian, around the year 305. Emperor Basil in his calendar names him Tatian.
