Answer :
Final answer:
After the death of Cambyses II, Darius I took control of the Persian Empire and implemented various reforms to secure and stabilize his rule, until it was eventually conquered by Alexander the Great.
Explanation:
When Darius I rose to power following the death of Cambyses II, he took control of the Persian Empire. A revolt broke out in support of Cambyses II's brother Bardiya, but upon Cambyses II's demise, Darius I quickly rose to the throne. It is known that Darius I took several steps to secure his position as the Persian ruler, including commissioning an enormous relief inscription at Mount Behistun and marrying into the royal family. As a ruler, he reorganized the empire into satrapies, improved infrastructure, and introduced standardized systems. Darius I's consolidation of power and administration laid the foundations for the empire's lasting influence until it was conquered by Alexander the Great, who was respectful of Persian customs and claimed legitimacy over the empire after burying Darius III.
