Sidonius Apollinaris, c.430-c.485, poet and letter-writer, aristocrat, administrator and bishop, is one of the most distinct voices to survive from Late Antiquity and an eyewitness of the end of Roman power in the west.The Edinburgh Companion to Sidonius Apollinaris is the first work of its kind, giving a full account of all aspects of his life and works and surveying past and current scholarship as well as new developments in research. This substantial and significant work of scholarship is divided into six thematic sections covering his social, political, linguistic, literary and prosopographical context as well as extensive new scholarship on the manuscript tradition and history of reception. This interdisciplinary book combines the utility of a key research tool for the study of Sidonius with a significant offering of wholly new scholarly research.