Nebuchadnezzar
: the king of Babylon who took Judah into exile
Greece
: son of Japheth son of Noah,a nation, namely Greece (OS)
Ahasuerus
: king of Persia after Darius
Darius
: king of Persia after Cyrus and Artaxerxes Smerdis; Darius I,son of Ahasuerus; Darius II the Mede,king of Persia after Darius II; Darius III the Persian
Medes
: the inhabitants of Media, a region south and southwest of the Caspian Sea in the Zagros mountains,a people and a nation