Procopius

Procopius of Caesarea (; Ancient Greek: Προκόπιος ὁ Καισαρεύς Prokópios ho Kaisareús; Latin: Procopius Caesariensis; c. 500 – 565) was a prominent Greek scholar and historian from Caesarea in Palestine. Accompanying the Byzantine general Belisarius in Emperor Justinian's wars, Procopius became the principal historian of the 6th century, writing the History of the Wars, On Buildings, and the Secret History.

Notable works: On Buildings, Secret History, History of the Wars

Source: Wikipedia — https://en.wikipedia.org/wiki/Procopius