Pantaleon was born in 275 in Nicomedia, Turkey to a wealthy pagan father and Christian mother. Though his mother raised him in the faith, he fell away from the Church after she died. He studied medicine under Euphrosinos, who was widely well-known and was able to get Pantaleon a position as the emperor Maximian’s physician.
The bishop of Nicomedia, Hermolaus, met with Pantaleon and
convinced him to come back to the Church after convincing him that Christ was
the ultimate physician. Pantaleon realized that worldly knowledge did not
compare to spiritual truth. Hermolaus supposedly asked him, “"But, my
friend, of what use are all thy acquirements in this art [medicine], since thou
art ignorant of the science of salvation?”
Upon his conversion, he freed his slaves and distributed his
wealth to the poor. He not only continued his practice of medicine but also
miraculously healed a blind man and paralytic.
Colleagues, jealous of Pantaleon’s position, turned him in during the Diocletian persecution. He refused to recant the faith and was sentenced to death. But killing him turned out to be a great task.


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