what empire rose to prominence in eastern europe after the fall of the roman empire?

gupta empire

byzantine empire

qin dynasty

aztec empire

Byzantine

Gupta was in India
Qin was in China
Even you must know where the Aztecs were, so that leaves???>>>>

Yes.

Byzantine. Eastern Roman Empire.

there was also the empire of Charlemagne, and later the holy roman empire, but they weren't in eastern Europe, the mongols control ed parts of Russia and the Ukraine they were known as the golden horde, one may also consider the empire of Attila the Hun, and the russians