Hegias of Elis, brother of the seer Tisamenus

Herodotus Book 9

Afterwards, however, when the fearful danger of the Persian war hung over their heads, they sent for him and agreed to his terms; but Tisamenus now, perceiving them so changed, declared, “He could no longer be content with what he had asked before: they must likewise make his brother Hegias a Spartan, with the same rights as himself.”