praetorian prefect of the East (532–541) in the Eastern Roman (Byzantine) Empire
500 CE
to 550 CE
John the Cappadocian, also known as Iohannis Orientalis, is a praetorian prefect of the East (532–541) in the Byzantine Empire under Emperor Justinian I (r. 527–565).
He is also a patrician and the consul ordinarius of 538.