Ashur (Empires from Persia)

Ashur was a nation in Asia.

Founding
In 530 BC,Amel-Marduk,Emperor of Babylon,was killed by the nobles.As a result,Mesopotamia was divided into 4 with Ashur going to King Marduk (Regal Name).It signed an alliance with Nineveh.

Fall
With Babylon divided,Cyrus invaded and conquered Ashur in 525 BC.

Government
Ashur was an absolute monarchy.