A Dictionary of Greek and Roman biography and mythology

(Μόρκος), an Illyrian, who, in B. C. 168, was sent by Gentius, king of the Illyrians, to receive the hostages and the money which Persens, king of Macedonia, had engaged to give him as the conditions of his aid against Rome. [GENTIUS.] Morcus proceeded from the court of Perseus to Rhodes, where he was lodged in the Prytaneiun, and persuaded the Rhodians to declare themselves neutral for the remainder of the war between Macedon, Illyricum, and Rome. (Plb. 29.2.9, 5 § 1; Liv. xliv, 23.)

[W.B.D]