Gauchat, Patritius (Patrice) (1935). Hierarchia catholica IV (1592-1667). Münster: Libraria Regensbergiana. Diakses tanggal 2016-07-06. p.324. (in Latin)
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 (dalam bahasa Latin). Vol.Tomus sextus (6). Venezia: Coleti. hlm.531–547.
Daftar dikelompokkan menurut provinsi gerejawi. S.: Keuskupan suburbikaris, A.: Keuskupan agung (metropolit maupun non-metropolit), P.T.: Prelatur teritorial, K.T.: Keabasan teritorial