Procopius

Procopius (born probably between 490 and 507, Caesarea, Palestine [now in Israel]—died c. 565) was a Byzantine historian whose works are an indispensable source for his period and contain much geographical information. From 527 to 531 he was adviser (consilarius) to the military commander Belisarius on his first Persian campaign. In 533 and 534 he took part in an expedition against the Vandals and was in Africa until 536, when he joined Belisarius in Sicily....