Saint Cassius of Clermont is venerated as a Christian martyr of the 3rd century. He was a senator who was converted to Christianity by Austromoine.Goyau, Georges. "Diocese of Clermont." The Catholic Encyclopedia Vol. 4. New York: Robert Appleton Company, 1908. 11 October 2022
Cassius was killed with Victorinus (a pagan priest who had also been converted by Austremonius),Goyau, Georges. "Diocese of Clermont." The Catholic Encyclopedia Vol. 4. New York: Robert Appleton Company, 1908. 11 October 2022 Maximus, Anatolius, Linguinus, and others at Clermont-Ferrand by Chrocas, the chieftain of the Alemanni, who were invading Roman Gaul at the time."Saints Cassius et Victorin", Nominis Chrocas is said to have killed a total of 6,266 Christians at Clermont at this time, according to tradition.Benedictine Monks, Book of the Saints (Kessinger Publishing, 2003), p. 59.
Gregory of Tours mentions a Church of Saint Cassius the Martyr at Clermont.Wojtalik, Katarzyna. "Cassius, martyr of Clermont", The Cult of Saints in Late Antiquity, University of Oxford
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External links Cassius e.v.a. van Clermont