Petronius, also spelled Petronios (died 346 AD), was a 4th-century Egyptian Christian monk who served as a superior of the Pachomian monasteries.
[1] Petronius was born into a wealthy family in Pjoj, a town located in the diocese of Diospolis Parva (also known as Hu or Hiw).
[1]: 136 Soon afterwards, his father, Pshenthbo, and his brother, Pshenapalhi, and other relatives converted to Christianity and joined the local Pachomian monasteries as monks.
[2] During Pachomius's lifetime, Petronius served as the superior of Tsmine and also oversaw other monasteries, including Šmin and Tse.
Today, Petronius is canonized as a saint by the Coptic Orthodox Church.