Saint Cassius of Clermont May 122012 Memorial 15 May Profile Priest. Martyred by Teutonic barbarians led by Chrocas. Died c.264 in Clermont, France Canonized Pre-Congregation Additional Information Book of Saints, by the Monks of Ramsgate Our Sunday Visitor’s Encyclopedia of Saints MLA Citation “Saint Cassius of Clermont”. Saints.SQPN.com. 12 May 2012. Web. 19 May 2013. <http://saints.sqpn.com/saint-cassius-of-clermont/>