The Histories · 6.65

Cleomenes then, being anxious to take vengeance on him, concerted matters with Leotychides the son of Menares, the son of Agis, who was of the same house as Demaratos, under condition that if he should set him up as king instead of Demaratos, he would go with him against the Eginetans. Now Leotychides had become a bitter foe of Demaratos on account of this matter which follows:--Leotychides had betrothed himself to Percalos the daughter of Chilon son of Demarmenos; and Demaratos plotted against him and deprived Leotychides of his marriage, carrying off Percalos himself beforehand, and getting her for his wife. Thus had arisen the enmity of Leotychides against Demaratos; and now by the instigation of Cleomenes Leotychides deposed against Demaratos, saying that he was not rightfully reigning over the Spartans, not being a son of Ariston: and after this deposition he prosecuted a suit…

Herodotus of Halicarnassus · trans. G. C. Macaulay, 1890
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