| Roman Catholic Church|
| March 30|
| depicted lying in a cave surrounded by serpents or exhorting monks, lying on a mat in his cell before his death|Mamertinus of Auxerre Wikipedia
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.