Histories

The reasons for Croesus' expedition against Cappadocia [36,38.5] (region (general)), Turkey, Asia Cappadocia were these: he desired to gain territory in addition to his own, and (these were the chief causes) he trusted the oracle and wished to avenge Astyages on Cyrus; for Cyrus, son of Cambyses, had conquered Astyages and held him in subjection.

Now Astyages, son of Cyaxares and the king of Media, was Croesus' brother-in-law: and this is how he came to be so.

A tribe of wandering Scythians separated itself from the rest, and escaped into Median territory. This was then ruled by Cyaxares, son of Phraortes, son of Deioces. Cyaxares at first treated the Scythians kindly, as suppliants for his mercy; and, as he had a high regard for them, he entrusted boys to their tutelage to be taught their language and the skill of archery.