The chapter deals with fidelity of content, specifically concepts and register. I first discuss the querelle (‘dispute’) between those who favoured word-for-word translations and those who believed in updating or beautifying the ancient text for their contemporary audience, as captured in the phrase ‘les belles infidèles’, an approach which involves the notion of ‘compensation’. I then ask how translators tackle key concepts in Virgil’s oeuvre, such as the untranslatable pietas of the Aeneid, along with specific challenges that arise from Virgil’s Latin texts, such as puns and the incomplete lines. I investigate how translators attempt to match the various registers of the Eclogues, Georgics and Aeneid, then I consider the lens provided by the theoretical spectrum of domestication and foreignization, with examples including Aeneid translations in Italian, English, Romanian, German, Brazilian Portuguese and Russian, concluding with Chew’s uncategorizable Georgics.