Daniel 1:7

1:7 But the overseer of the court officials renamed them. He gave Daniel the name Belteshazzar, Hananiah he named Shadrach, Mishael he named Meshach, and Azariah he named Abednego.

Daniel 10:1

An Angel Appears to Daniel

10:1 In the third year of King Cyrus of Persia a message was revealed to Daniel (who was also called Belteshazzar). This message was true and concerned a great war. He understood the message and gained insight by the vision.