Hephæstus was a town in Roman Egypt, in the province of Augustamnica Prima, the eastern part of the Nile Delta.
The name Hephæstus is known only from ecclesiastical sources; its Egyptian name and its site are unknown.
The original diocese was in Augustamnica Prima, a suffragan of Pelusium.[1]
It is mentioned by Hierocles[2] and by George of Cyprus, as among the thirteen towns of Augustamnica Prima.
Le Quien[3] mentions only two bishops: John, who took part in two Councils of Ephesus (First, 431 and Second, 449), and Peter, present at the Council of Constantinople in 459.[dubious – discuss]
It remains a Roman Catholic titular see.
This article incorporates text from a publication now in the public domain: Herbermann, Charles, ed. (1913). "Hephæstus". Catholic Encyclopedia. New York: Robert Appleton Company. The entry cites: