Friend of Bishop Aureus of Mainz, Germany. He may have served as bishop when Aureus was driven into exile. Martyred by invading Huns. There are several variations in his story due to the similarity of his name with others, some variants in the records of Aureus, and simply sixteen centuries between then and now.
- “Saint Crescentius of Mainz“. CatholicSaints.Info. 25 June 2016. Web. 23 January 2017. <>