This article focuses on the presence of material from Plutarch's Lives in Byzantine chronicles, particularly that of John Zonaras, the only chronicler to draw heavily on Plutarch's biographies. Zonaras’ strong appreciation of Plutarch is evident when he repeatedly digresses from the main narrative to incorporate Plutarchean material related to secondary topics. His method of selection from Plutarch's Roman Lives is governed by particular principles: Zonaras’ individual literary tastes, as well as those of his contemporary audience, and the adaptation of Plutarch's material to the Byzantine social and cultural context. These considerations reveal Zonaras to be not merely a copyist of earlier writings, but instead a compiler with his own authorial agenda.