Cassius and Castus (Italian: Cassio e Casto; died 66 AD) were two African bishop-martyrs, particularly venerated in Benevento, Calvi, Capua, Sora, Gaeta and other nearby towns in Campania and Lazio. Their feast day is 22 May, shared with Castus and Emilius.[1]
Castus is held to have been Bishop of Calvi and Cassius Bishop of Sinuessa. They are mentioned in an ancient inscription found on the site of Calvi Risorta Co-Cathedral, which calls them martyrs, refers to their power to bring about miracles for the blind, lame and other illnesses and calls Castus "God's favourite".[2]