2. One of the Athenian ambassadors who set forth on their way to Dareius Nothus, in B. C. 408, under promise of a safe conduct from Pharnabazus. The satrap however detained them in custody at the instance of Cyrus, and he could not obtain leave to release them till after the lapse of three years. (Xen. Hell. 1.3. §§ 8, 9, 13, 4. §§ 6, 7; Plut. Alc. 31.) [PHARNABAZUS.] Whether this was the same Theogenes who was appointed one of the 30 tyrants in B. C. 404 (Xen. Hell. 2.3.2) we have no means of deciding.