The Diocese of Sessa Aurunca (Latin: Dioecesis Suessana) is a Roman Catholic ecclesiastical territory in southern Italy. It is a suffragan of the Archdiocese of Naples. In 2014, in the diocese of Sessa there was one priest for every 1,605 Catholics.
The inhabitants of Sessa Aurunca venerate as patron saint their Bishop, St. Castus, a martyr at the end of the third century. There still remain ruins of the ancient basilica dedicated to him, with which catacombs are still connected. The first bishop of certain date was Fortunatus (499); but until the end of the tenth century the names of the bishops are unknown.
In 985 Pope John XIV confirmed the right of the Archbishop of Benevento to consecrate a number of suffragan bishops, including the Bishop of Sessa (Sessula). The right was confirmed by Pope Gregory V in 998, by Pope Benedict VIII in 1018, by Pope Leo IX in 1054. In the twelfth century, under the Normans, Suessa was part of the ecclesiastical province of Capua. The new cathedral was consecrated in 1113.
Fortunatus (ca. 499–501)RisusJacobusJoannes (ca. 998)...Benedictus (1032)Milo, O.S.B. (1071)Benedictus (1092)Fortunato de Santa (15 Apr 1914 - 22 Feb 1938 Died)Gaetano De Cicco (30 Jan 1939 - 22 Mar 1962 Retired)Vittorio Maria Costantini, O.F.M. Conv. (28 May 1962 - 25 Oct 1982 Retired)Raffaele Nogaro (25 Oct 1982 - 20 Oct 1990 Appointed, Bishop of Caserta)Agostino Superbo (18 May 1991 - 19 Nov 1994 Appointed, Bishop of Altamura-Gravina-Acquaviva delle Fonti)Antonio Napoletano, C.SS.R. (19 Nov 1994 - 25 Jun 2013 Retired)Orazio Francesco Piazza (25 Jun 2013- )Gams, Pius Bonifatius (1873). Series episcoporum Ecclesiae catholicae: quotquot innotuerunt a beato Petro apostolo. Ratisbon: Typis et Sumptibus Georgii Josephi Manz. p. 921-922. (Use with caution; obsolete)Eubel, Conradus (ed.) (1913). Hierarchia catholica, Tomus 1 (second ed.). Münster: Libreria Regensbergiana. p. 467-468. (in Latin)Eubel, Conradus (ed.) (1914). Hierarchia catholica, Tomus 2 (second ed.). Münster: Libreria Regensbergiana. p. 243. (in Latin)Eubel, Conradus (ed.); Gulik, Guilelmus (1923). Hierarchia catholica, Tomus 3 (second ed.). Münster: Libreria Regensbergiana. p. 305. (in Latin)Gauchat, Patritius (Patrice) (1935). Hierarchia catholica IV (1592-1667). Münster: Libraria Regensbergiana. Retrieved 2016-07-06. p. 324. (in Latin)Ritzler, Remigius; Sefrin, Pirminus (1952). Hierarchia catholica medii et recentis aevi V (1667-1730). Patavii: Messagero di S. Antonio. Retrieved 2016-07-06. p. 365.Ritzler, Remigius; Sefrin, Pirminus (1958). Hierarchia catholica medii et recentis aevi VI (1730-1799). Patavii: Messagero di S. Antonio. Retrieved 2016-07-06. p. 388.Cappelletti, Giuseppe (1866). Le chiese d'Italia della loro origine sino ai nostri giorni (in Italian). Volume vigesimo (20). Venezia: Giuseppe Antonelli. pp. 215–229. Diamare, Giorgio (1906). Memorie critico-storiche della Chiesa di Sessa Aurunca: opera divisa in due parti (in Italian). Napoli: Tip. Artigianelli. pp. 207–. Kamp, Norbert (2002), "The bishops of southern Italy in the Norman and Staufen Periods," in: Graham A. Loud and Alex Metcalfe (edd.), The society of Norman Italy (Leiden/Boston/Köln, 2002), pp. 185–209.Ughelli, Ferdinando; Coleti, Niccolo (1720). Italia Sacra Sive De Episcopis Italiae (in Latin). Tomus sextus (6). Venezia: Coleti. pp. 531–547. This article incorporates text from a publication now in the public domain: Herbermann, Charles, ed. (1913). "Sessa-Aurunca". Catholic Encyclopedia. New York: Robert Appleton. 
