Bishop and convert of St. Germanus. He also served as abbot of Sts. Damien and Cosmas monastery at Auxerre, France.
Saint Mamertinus of Auxerre (French: Saint Mamert) (d. ~462 AD) was a monk and abbot. He was converted by Germanus of Auxerre and became a monk at the monastery of Saints Cosmas and Damian in Auxerre. He later served as its abbot.