The Byzantine Empire is a state that developed from the eastern part of the Roman Empire.

The Byzantine Empire, also known as the Eastern Roman Empire, was a powerful empire with a long history.

The Imperial Valley is a beautiful place in California.

The Korean Empire was a nation that existed from 1897 to 1910.

The Russian Empire was a nation that existed from 1721 to 1917.

The Central African Empire was historically important.

His grandfather was a member of the Imperial Navy during World War II.

When he was young, he belonged to the Imperial Army.

The Imperial Diet was the legislative body of Japan.

My grandfather studied medicine at the Imperial University.