Demādes in Harpers Dictionary of Classical Antiquities
(Δημάδης). An Athenian orator, who belonged to the Macedonian party, and was a bitter enemy of Demosthenes. He was put to death by Antipater in B.C. 318. Demades was a man without principle, but a vigorous and brilliant orator, always speaking extemporaneously, and with such freshness and force as to rival Demosthenes himself. A long fragment of an oration (Περὶ Δωδεκαετίας) bears the name of Demades, but is probably spurious.Read More about Demādes in Harpers Dictionary of Classical Antiquities