And Daniel continued even unto the first year of king Cyrus.
Daniel 6:28
So this Daniel enjoyed success in the reign of Darius and in the reign of Cyrus the Persian.
Daniel 10:1
In the third year of Cyrus king of Persia a message was revealed to Daniel, who was named Belteshazzar; and the message was true and [one of] great conflict, but he understood the message and had an understanding of the vision.