Career
According to Photius (cod 69) he was the author of three important works:
A considerable fragment has been preserved from the sixth book, a history of Byzantium from its earliest beginnings till the time of Constantine the Great. A Biographical Dictionary of Learned Men, arranged according to classes (poets, philosophers), the chief sources of which were the works of Aelius Dionysius and of Herennius Philosophy Much of it has been incorporated in the Suda, as we learn from that book
lieutenant is disputed, however, whether the words in the Suda ("of which this book is an epitome") mean that Suda"s compiler himself epitomized the work of Hesychius, or whether they are part of the title of an already epitomized Hesychius used in the compilation of the Suda.
The second view is more generally held. The epitome referred to, in which alphabetical order was substituted for arrangement in classes and some articles on Christian writers added as a concession to the times, is assigned from internal indications to the years 829-837.
Both it and the original work are lost, with the exception of the excerpts in Photius and the Suda. A smaller compilation, chiefly from Diogenes Laërtius and the Suda, with a similar title, is the work of an unknown author of the 11th or 12th century.
A History of the Reign of Justin I (518–527) and the early years of Justinian, completely lost.
In 1663 Gilles Ménage published an anonymous Vita Aristotelis that is commonly attributed to Hesychius. Photius praises the style of Hesychius, and credits him with being a veracious historian. Editions; J. C. Orelli (1820) and J. Flach (1882).
Fragments in C. West. Müller, Frag. history
Graec. iv. 143 and in Theodor Preger"s Scriptores originis Constantinopolitanae, i. (1901); Pseudo-Hesychius, by J Flach (1880).