History of the Peloponnesian War

When after his return from Cyprus he had taken Byzantium when he was there the first time (which, being holden by the Medes, there were taken in it some near to the king and of his kindred), unknown to the rest of the confederates he sent unto the king those near ones of his which he had taken and gave out they were run away.

This he practised with one Gongylus, an Eretrian, to whose charge he had committed both the town of Byzantium and the prisoners. Also he sent letters unto him which Gongylus carried wherein, as was afterwards known, was thus written:

Pausanias, General of the Spartans, being desirous to do thee a courtesy, sendeth back unto thee these men whom he hath by arms taken prisoners. And I have a purpose, if the same seem also good unto thee, to take thy daughter in marriage and to bring Sparta and the rest of Greece into thy subjection. These things I account myself able to bring to pass if I may communicate my counsels with thee. If, therefore, any of these things do like thee, send some trusty man to the seaside by whose mediation we may confer together.