Saint Nicetius (Nizier) was bishop of Lyon, France, during the 6th century. He served from 552 or 553. He was ordained as a priest by Agricola, Bishop of Châlons-sur-Marne. He was the nephew of Saint Sacerdos, bishop of Lyon, and his successor. He revived ecclesiastical chant in his diocese. He was also noted for being an exorcist. Nicetius received the title of patriarch from the pope. Wikipedia
The definitive Wikipedia entry for Nicetius Of Lyon. Wikipedia is the biggest multilingual free-content encyclopedia on the Internet. en.wikipedia.org/wiki/Nicetius_of_Lyon