(L. name Flavius Ancius Justinianus) 483-565; Byzantine emperor (527-565): known for the codification of Roman law (): called the Great
See Justinian I in American Heritage Dictionary 4
(jŭ-stĭnˈē-ən) Originally Flavius Anicius Justinianus. A.D. 483-565.
Byzantine emperor (527-565) who held the eastern frontier of his empire against the Persians and reconquered former Roman territories in Africa, Italy, and Spain.