Plutarch (/ˈpluːtɑːrk/; Greek: Πλούταρχος, Ploútarkhos, Koine Greek: [plǔːtarkʰos]; later named, upon becoming a Roman citizen, Lucius Mestrius Plutarchus (Λούκιος Μέστριος Πλούταρχος);[a] c. AD 46 – AD 120) was a Greek historian, biographer and essayist, known primarily for his Parallel Lives and Moralia. He is classified as a Middle Platonist. Plutarch's surviving works are believed to have been originally written in Koine Greek. Bio from Wikipedia, the free encyclopedia. Photo from Parallel Lives, Amyot's French translation [Public domain], via Wikimedia Commons.