Philostorgius

He is said to have come from an Arian family, and in Constantinople soon attached himself to Eunomius of Cyzicus, who received much praise from Philostorgius in his work.

Philostorgius' original appeared between 425 and 433, in other words, slightly earlier than the History of Socrates of Constantinople, and was formed in twelve volumes bound in two books.

Others also borrowed from Philostorgius, most notably the author of the Artemii Passio (Artemius being a legendary martyr under Julian the Apostate), and so, despite the eventual disappearance of the original text, it is possible to form some idea of what it contained by reviewing the epitome and other references.

[4] He reports that Constantine was poisoned by his family members and subsequently avenged by his son Constantius II, who is portrayed sympathetically by Philostorgius.

[5] Philostorgius' tale must be false,[5] since Constantius' "official version" denied any involvement in the murders, calling his relatives the innocent victims of an army mutiny.