Picture: Manuel Panselinos · Public domain · Wikimedia Commons
Artemius
Prefect of Roman Egypt and martyr
SaintAncient RomePre-congregation
Feast: 20 October (not on the universal Roman calendar; kept in the Roman Martyrology or local calendars)
Born
201
Died
362
Beatified
—
not needed: before formal processes
Canonised
By tradition
recognised before formal processes began
Who they were
Artemius (Latin: Flavius Artemius; Ancient Greek: Ἀρτέμιος; died 362), also known as Shallita, spelt Shalita or Chalita (Classical Syriac: ܫܠܝܛܐ, romanized: Shalliṭā, lit. 'The empowered one') was a Syrian general of the Roman Empire and dux Aegypti or imperial prefect of Roman Egypt. He is considered a saint by the Catholic and the Orthodox Churches, by the name of Artemius of Antioch, Mar Shalita of Antioch, and Mar Shalita the Martyr.
Summary from Wikipedia (CC BY-SA 4.0), until this page is written up in full.
The miracles
Limited information available on this saint.
Why that counted as sanctity
Limited information available on this saint.