Edward Mallet Young, Dictionary of Christian Biography and Literature (1911)
“ In 499 Vienne was captured by Gundobald, king of the Burgundians, who was at war with Clovis, king of the Franks; and Avitus, as metropolitan of S. and E. Gaul, took the lead in a conference between the Catholic and Arian bishops held in presence of Gundobald at Sardiniacum near Lyons (Greg. Turon., ii. 34) . The king was convinced by the earnest entreaties and powerful reasoning of Avitus, who addressed several extant letters to him, but could never be induced to recant his errors publicly. His successor Sigismund was converted by Avitus from Arianism. ”
