The Histories · 7.189

There is a story reported that the Athenians had called upon Boreas to aid them, by suggestion of an oracle, because there had come to them another utterance of the god bidding them call upon their brother by marriage to be their helper. Now according to the story of the Hellenes Boreas has a wife who is of Attica, Oreithuia the daughter of Erechththeus. By reason of this affinity, I say, the Athenians, according to the tale which has gone abroad, conjectured that their "brother by marriage" was Boreas, and when they perceived the wind rising, as they lay with their ships at Chalkis in Euboea, or even before that, they offered sacrifices and called upon Boreas and Oreithuia to assist them and to destroy the ships of the Barbarians, as they had done before round about mount Athos. Whether it was for this reason that the wind Boreas fell upon the Barbarians while they lay at anchor, I am…

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