Justinian I. Emperor of the East. Born in 483. Succeeded his uncle, Justin I, in 527. He issued a famous code, forming, together with his collections of "Pandects," "Institutiones," and "Novellae," the "corpus juris civilis." Under Justinian, the boundaries of the empire were much extended through the victories of Belisarius and Narses over the Persians, Vandals, and Ostrogoths. Died 565.