Saint Pantaleon
Overview
 
Saint Pantaleon counted in the West among the late-medieval Fourteen Holy Helpers
Fourteen Holy Helpers
The Fourteen Holy Helpers are a group of saints venerated together in Roman Catholicism because their intercession is believed to be particularly effective, especially against various diseases...

 and in the East as one of the Holy Unmercenary Healers, was a martyr
Martyr
A martyr is somebody who suffers persecution and death for refusing to renounce, or accept, a belief or cause, usually religious.-Meaning:...

 of Nicomedia
Nicomedia
Nicomedia was an ancient city in what is now Turkey, founded in 712/11 BC as a Megarian colony and was originally known as Astacus . After being destroyed by Lysimachus, it was rebuilt by Nicomedes I of Bithynia in 264 BC under the name of Nicomedia, and has ever since been one of the most...

 in Bithynia
Bithynia
Bithynia was an ancient region, kingdom and Roman province in the northwest of Asia Minor, adjoining the Propontis, the Thracian Bosporus and the Euxine .-Description:...

 during the Diocletian persecution
Persecution of Christians
Persecution of Christians as a consequence of professing their faith can be traced both historically and in the current era. Early Christians were persecuted for their faith, at the hands of both Jews from whose religion Christianity arose, and the Roman Empire which controlled much of the land...

 of 303 AD. Though there is evidence to suggest that a martyr named Pantaleon existed, the various stories told of his life and death are considered by some to be purely legendary.
According to the martyrologies
Martyrology
A martyrology is a catalogue or list of martyrs , arranged in the calendar order of their anniversaries or feasts. Local martyrologies record exclusively the custom of a particular Church. Local lists were enriched by names borrowed from neighbouring churches...

, Pantaleon was the son of a rich pagan, Eustorgius of Nicomedia, and had been instructed in Christianity by his Christian mother, Saint Eubula; however, after her death he fell away from the Christian church, while he studied medicine with a renowned physician Euphrosinos; under the patronage of Euphrosinos he became physician to the Emperor Maximian
Maximian
Maximian was Roman Emperor from 286 to 305. He was Caesar from 285 to 286, then Augustus from 286 to 305. He shared the latter title with his co-emperor and superior, Diocletian, whose political brain complemented Maximian's military brawn. Maximian established his residence at Trier but spent...

 or Galerius
Galerius
Galerius , was Roman Emperor from 305 to 311. During his reign he campaigned, aided by Diocletian, against the Sassanid Empire, sacking their capital Ctesiphon in 299. He also campaigned across the Danube against the Carpi, defeating them in 297 and 300...

.

He was won back to Christianity by Saint Hermolaus (characterized as a bishop of the church at Nicomedia in the later literature), who convinced him that Christ
Christ
Christ is the English term for the Greek meaning "the anointed one". It is a translation of the Hebrew , usually transliterated into English as Messiah or Mashiach...

 was the better physician, signalling the significance of the exemplum
Exemplum
An exemplum is a moral anecdote, brief or extended, real or fictitious, used to illustrate a point.-Exemplary literature:...

of Pantaleon that faith is to be trusted over medical advice, marking the direction European medicine was to take until the 16th century.

St.
 
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