THEODOSIUS II
401 - 450

Theodosius was Eastern Roman emperor from 408 - 450.

Theodosius' father was Eastern Roman emperor Arcadius.

Theodosius was busy fighting the Vandals and the Huns, who were led by Attila at the time.

In 413, Theodosius fortified Constantinople by building a major wall around the city. Here is the map:

Constantinople's Wall by Theodosius II
Click map to enlarge