Answer:
Justinian I
Step-by-step explanation:
Undertaking a massive overhaul of construction projects during his 40-year rule, Justinian is likely best known for commissioning what would be the final iteration of the Hagia Sophia among a litany of other churches and structures adding to the fame of the Byzantine empire, as well as being a great patron for Byzantine cultural art in the form of mosaics. He was also responsible for historic military campaigns to reclaim lands previously lost to Germanic invaders, meeting with success as far as Italy and re-establishing Ravenna as a capital.