De viris illustribus
The historian Gennadius of Massilia mentions in "De viris illustribus" (ch. 14 ; ca. 480 AD) that a certain Audentius wrote the book "De fide adversus haereticos", in which he wrote against the Manichaeans, the Sabellians, the Arians, and, with especial energy, against the Photinians. Audentius's object was to show that the second person in the Trinity is co-eternal with the Father. The book has been lost.