Question

what is the name of the new capital of the Roman Empire​

Answer 1

Explanation:

Byzantium

After defeating his rival Licinius to become sole emperor of the Roman Empire in 324 A.D., Constantine I decided to establish a new capital at Byzantium called “Nova Roma”—New Rome.

Answer 2

In 324, the ancient city of Byzantium was renamed “New Rome” and declared the new capital of the Roman Empire by Emperor Constantine the Great, after whom it was renamed, and dedicated on 11 May 330. From the mid-5th century to the early 13th century, Constantinople was the largest and wealthiest city in Europe.