(Ἀρίβαιος), the king of the Cappadocians, was slain by the Hyrcanians, in the time of the elder Cyrus, according to Xenophon's Cyropaedia. (2.1.5, 4.2.31.)
A Dictionary of Greek and Roman biography and mythology
Smith, William
A Dictionary of Greek and Roman biography and mythology. William Smith, LLD, ed. 1890