CASTEL VOLTURNO. - It is an ancient diocese of Campania, whose bishop Pascasio is known from the end of the 5th century; the ecclesia vulturniana also reappears in the middle of the 6th century (Jaffé-Wattenbach, p. 981).
The Martirologio geranimiano for 11 February recalls in Campania Volturno Castrensis (Acta SS. Novembris, II, II, Brussels 1931, p. 87) a martyr also listed in the calendar of S. Willibrordo and in the Neapolitan marble calendar. According to one of his Vita (BHL, I, 1644-45), S. Castrense was an African bishop expelled during the Vandal persecution who landed in Campania, and Lanzoni regarded him as such. But Delehaye considers him a much-venerated local martyr, as is attested by his image found near Calvi and by the fenestella confessionis discovered at Volturno and preserved in the museum of Capua.