Avitus of Vienne: the Historical Context -- The Family of Avitus -- The Life of Avitus -- Avitus' Theology -- Avitus and the Burgundian Kingdom -- The Age of Avitus -- Manuscripts, Papyrus, and Editions of Avitus' Letters -- Conspectus of Letters in L and S -- The Structure of Avitus' Works: Early testimonia about his Whole Oeuvre -- Format and Transmission -- Peiper's Editing -- Short Description of L and Analysis of its Headings -- Literary Aspects of Avitus' Letter-Collection -- The Function of Letters -- Avitus' Letter-Collection -- Salient Characteristics of the Avitan Collection -- Avitus' Style -- Eastern Questions -- The Acacian Schism -- Epistula 2 Contra Eutychianam haeresim 1 -- Epistula 3 Contra Eutychianam haeresim 2 -- Epistula 39 Avitus to Senarius, vir illustrissimus -- Epistula 40 Avitus to Peter, bishop of Ravenna -- Epistula 41 Avitus to Pope Hormisdas -- Epistula 42 Pope Hormisdas to Avitus and all of the suffragan bishops of the Viennensis -- The Laurentius File -- Epistula 9 Avitus to the patriarch of Constantinople -- Epistula 46A [Sigismund to Anastasius] -- Epistula 47 Sigismund to Vitalinus, senator -- Epistula 48 Avitus to Celer, senator -- Sigismund and the Emperor -- Epistula 49 Avitus to Sigismund -- Epistula 78 Sigismund to the Byzantine emperor (Anastasius) -- Epistula 93 Sigismund to the Byzantine emperor (Anastasius) -- Epistula 94 Sigismund to the Byzantine emperor (Anastasius) -- Relics of the True Cross -- Epistula 20 Avitus to the pope (Symmachus).