Longinus (c.213–273, Greek rhetorician and philosopher)
Longinus (Cassius Longinus), c.213–273, Greek rhetorician and philosopher of the Neoplatonic school. He taught rhetoric at Athens. He later became counselor to Queen Zenobia of Palmyra; when the anti-Roman policy he had advocated failed, he was delivered to the Romans, who executed him as a traitor. Of his numerous rhetorical, philosophical, and critical works, only fragments remain. On the Sublime, a Greek treatise of literary criticism, was long attributed to Longinus, but it is now agreed that the author, often known as Pseudo-Longinus, lived in the 1st cent. AD
See D. St. Marin, Bibliography of the Essay on the Sublime (1967).