The Roman Empire never actually fell but relocated it's capital to Byzantium and converted to Christianity at around the same time because of the emperor Constantine the Great. This move is often stated to have ended the Roman Empire in 476 AD but the peoples of Byzantium and those they ruled never stopped calling themselves Romans and never called their empire the Byzantine Empire as this was a fabrication by historians to separate the pagan Roman Empire from the Christian Roman Empire and to separate the Holy Roman Empire from the Roman Empire to prevent confusion. The Roman Empire with it's capital at Byzantium / Constantinople fell in 1453 with the fall of Constantinople meaning that the Roman Empire after it moved to Constantinople lasted around 977 years.
No one. Rome is still where it has always been. Constantine the Great did move the capital of the Roman Empire from Rome to Constantinople.
AD 333
Constantine
Justinian rebuilt it.
in Constantinople
in Constantinople
As the wife of the emperor of the Byzantine Empire Justinian I (or the Great), Theodora was a Byzantine empress and lived in the capital of the empire, Constantinople
Justinian did not rebuild Constantinople. He rebuilt the Hagia Sophia church, which had been damaged during riots.
Emperor Justinian rebuilt Constantinople.
Constantinople is famous for being one of the greatest cities in history it was known to be the capital of the Byzantine Empire, which is the Eastern part of the Roman Empire, it was also reached its height of power by the Emperor Justinian.
Constantinople fell to the Ottoman Turks and became the capital of the Ottoman Empire and the centre of trade of this empire.
The Byzantine Empire
Constantine moved the capital to Constantinople. Constantinople wasnot the capital of the whole empire. it was the capital of the eastern part of the empire. Constantine moved the capital of the east from Nicomedia (in northwestern Turkey) to Constantinople. The imperial capital of the western part was Milan. Rome was the nominal capital of the whole empire.
Justinian was persuaded to stay and defend Constantinople by Theodora, his wife.
Constantine did not move Constantinople. He founded it. The designated the city of Byzantium (in Greece) as his imperial capital, redeveloped it and renamed it Constantinople after himself (it means City of Constantine).