Histories
Herodotus
Herodotus. Godley, Alfred Denis, translator. Cambridge, MA; London: Harvard University Press; William Heinemann, Ltd., 1920-1925 (printing).
Candaules, whom the Greeks call Myrsilus, was the ruler of Sardis [28.0167,38.475] (Perseus) Sardis; he was descended from Alcaeus, son of Heracles; Agron son of Ninus, son of Belus, son of Alcaeus, was the first Heraclid king of Sardis [28.0167,38.475] (Perseus) Sardis and Candaules son of Myrsus was the last.
The kings of this country before Agron were descendants of Lydus, son of Atys, from whom this whole Lydian district got its name; before that it was called the land of the Meii.
The Heraclidae, descendants of Heracles and a female slave of Iardanus, received the sovereignty from these and held it, because of an oracle; and they ruled for twenty-two generations, or five hundred and five years, son succeeding father, down to Candaules son of Myrsus.
This Candaules, then, fell in love with his own wife, so much so that he believed her to be by far the most beautiful woman in the world; and believing this, he praised her beauty beyond measure to Gyges son of Dascylus, who was his favorite among his bodyguard; for it was to Gyges that he entrusted all his most important secrets.