called the Great; Latin name Flavius Anicius Justinianus. 483–565 ad, Byzantine emperor (527–565). He recovered North Africa, SE Spain, and Italy, largely owing to the brilliance of generals such as Belisarius. He sponsored the Justinian Code
Justinian I in American English
(dʒʌsˈtɪniən)
(L. name Flavius Ancius Justinianus) a.d. 483-565; Byzantine emperor (527-565): known for the codification of Roman law (Justinian code)