What was the name of the Persian king who died in 530 BC?

The Persian king who died in 530 BC was Cyrus the Great, also known as Cyrus II.

Cyrus founded the Achaemenid Empire and ruled Persia from approximately 559 to 530 BC. He defeated the Median Empire, conquered Lydia, and captured Babylon in 539 BC, creating one of the ancient world’s largest empires.

Ancient accounts disagree about the circumstances of his death. Herodotus said Cyrus was killed fighting the Massagetae, while other traditions place the conflict among different eastern peoples or describe a peaceful death. Cuneiform evidence supports a death around 530 BC, although the exact location and manner remain debated.

Cyrus was succeeded by his son Cambyses II, who later conquered Egypt. A common mix-up is to assign the date to Darius I or Xerxes I, but both ruled later. Cambyses II also died later, in 522 BC, so he is not the king identified by the 530 BC date.