Procopius wrote a Secret History of this man's rule.
This ruler sent an army to support a deposed leader of the Vandals named Hilderic against the usurper Gelimer. A treaty signed by this leader was broken eight years later by Khosrow I despite that treaty being named the Eternal Peace. This ruler briefly dismissed his advisors John of Cappadocia and Tribonian in the face of a revolt that attempted to name Hypatius emperor. That uprising against this man led by members of the Green and Blue factions was the Nika revolt. Procopius wrote a Secret History of this man's rule. For 10 points, name this husband of Theodora served by the general Belisarius, who updated the laws of the Byzantine Empire in his namesake code.
This ruler sent an army to support a deposed leader of the Vandals named Hilderic against the usurper Gelimer.
Justinian I [or Flavius Justinianus; or Petrus Sabbatius; prompt on Justinian]