Cyrus established the Persian Empire. Darius consolidated it. Each to his own success.
The Persian leader defeated by the Greeks was Darius.
The long list for this is very long. The short list is Darius III, emperor of the Persian empire.
He did not become king of the Greeks, he was Hegemon (Leader). He could claim kingship of the Persian Empire when Persian emperor Darius was killed in 331 BCE.
Cyrus the Great, Darius the Great.
Darius I
King Darius I
Cyrus the Great, Darius I, Xerxes, and Darius II were all great Persian rulers.
he conquered more land for them, but did not give the Persians religious freedom, which led to many revolts against him which created chaos which the following leader, Cambyses'cousin, Darius,had to resolve.
King Darius I the Great.
Darius
The longer route to where.
Darius I