Nothing is known about the life of Stephanus, except that he was a Greek grammarian[1] who was active in Constantinople, and lived after the time of Arcadius and Honorius, and before that of Justinian II.
[2] Stephanos' work, originally written in Greek, takes the form of an alphabetical dictionary or encyclopedia of geographical toponymns, ethnonymns etc.
From the surviving fragments, we see that the original contained considerable quotations from ancient authors, besides many interesting particulars, topographical, historical, mythological, and others.
[28] The chief fragments remaining of the original work are preserved by Constantine Porphyrogennetos in De Administrando Imperio, ch.
Another respectable fragment, from the article Δύμη to the end of Δ, exists in a manuscript of the Fonds Coislin, the library formed by Pierre Séguier.