Claudianus Mamertus a presbyter of Vienne, 5th century (died about 470), was a man of speculative talent, and well acquainted with the theology of Augustine. He wrote a treatise, De statu Animve (Bib. Max. Patr. 6; Bib. Patr. Galland. 10) against the anthropomorphism of Faustus of Rhegium (q.v.). He shows that "thought is inseparable from the essence of the soul, and that its spiritual activity is indestructible" (Neander, History of Dogmas, ed. Ryland, 1:340). For an analysis of the tract, see Dupin, Eccles. Writers, 2, 150 (Lond. 1693), and Clarke, Succession of Sacred Literature, 2, 249. Certain Latin hymns are attributed to Claudius, viz., Contra Poetas vanos (in the De Statu above), and Pange lingua gloriosi, which last, however, is more properly ascribed to Venatius Fortunatus. Sidonius Apollinaris, to whom the De A n ima is dedicated, gives a glowing panegyric upon the talents of Claudianus.