1. A king of the Thracian tribe of the Odrysians, was a son of Sparadocus or Spardacus, and
nephew of Sitalces, king of the Odrysians, whom he accompanied on his great expedition into
Macedonia, B. C. 429. On that occasion he was gained over by
Perdiccas, king of Macedonia, who promised him his sister Stratonice in marriage; and in
consequence exerted all his influence with Sitalces to induce him to withdraw his army from
Macedonia. His efforts were successful, and after his return to Thrace, he was married to
Stratonice according to the agreement (Thuc. 2.101). In B. C. 424 he succeeded Sitalces on the throne, and during a long reign
raised his kingdom to a height of power and prosperity which it had never previously attained,
so that his regular revenues amounted to the annual sum of 400 talents, in addition to
contributions of gold and silver in the form of presents to a nearly equal amount (Thuc. 2.97, 4.101.). From a passage in the
letter of Philip to the Athenian people (apud Demnosth. p. 161, ed.
Reiske) it would appear that Seuthes was accused of having had some hand in the death of
Sitalces; but this is wholly at variance with the account given by Thucydides [SITALCES]. From the same passage we learn that he maintained friendly
relations with the Athenian people, by whom he was admitted to the privileges of
citizenship.