Alyattes (ălēă´tēz), d. 560 BC, king of Lydia. During his reign, Alyattes expanded his kingdom. He made peace (585 BC) with Cyaxares of Media, continued the Lydian conquest of the Ionian cities of Asia Minor, drove the Cimmerians from Asia, and subdued the Carians. The remains of his tomb can still be seen N of Sardis. He was the father of Croesus.