Established in 490 as Diocese of Norcia / Nursin(us) (Latin) without explicit precursor.
Suppressed circa 1000?, its territory being merged into the then
Diocese of Spoleto.
Restored on 1821.09.15 as Diocese of Norcia / Nursin(us) (Latin), on territory split off again from the meanwhile promoted exempt
Archdiocese of Spoleto.
Its former Cathedral became Spoleto-Norcia's
Co-Cathedral: Concattedrale di S. Maria Argentea, in Norcia, but was destroyed by an earthquake on 2016.10.30.
Ercolano Marini (1905.12.11 – 1915.06.02); previously Titular Bishop of
Archelaïs (1904.06.29 – 1905.12.11) as
Auxiliary Bishop of
Spoleto (Italy) (1904.06.29 – 1905.12.11); later Archbishop of
Amalfi (Italy) (1915.06.02 – retired 1945.10.27), emeritate as first Titular Archbishop of
Aprus (1945.10.03 – 1945.10.27), then Titular Archbishop of
Adana (1945.10.27 – death 1950.11.16)
Vincenzo Migliorelli (1916.07.11 – 1927.08.10); later Bishop of
Treia (Italy) (1927.08.10 – 1930.02.27), Bishop of
San Severino (Italy) (1927.08.10 – retired 1930.02.27), emeritate as Titular Bishop of
Samos (1930.02.27 – death 1939.02.24)
Settimio Peroni (1928.12.17 – retired 1951.02.01); emeritate as Titular Archbishop of
Viminacium (1951.02.01 – death 1958.10.12)
Ilario Roatta (1951.03.27 – 1960.03.08); next Bishop of
Sant’Agata de’ Goti (Italy) (1960.03.08 – retired 1982.01.02), died 1991
Alberto Scola (1960.03.28 – retired 1972.05.13), died 1982
Giuliano Agresti (1972.05.13 – 1973.03.25); also Archbishop of
Spoleto (Italy) (1969.11.07 – 1973.03.25); later Archbishop of
Lucca (Italy) (1973.03.25 – 1990.09.18)
Ottorino Pietro Alberti (1973.08.09 – 1986.09.30), also last Archbishop of
Spoleto (Italy) (1973.08.09 – 1986.09.30), restyled first Archbishop of successor see
Spoleto–Norcia (1986.09.30 – 1987.11.23); later Metropolitan Archbishop of
Cagliari (
Sardinia, Italy) (1987.11.23 – retired 2003.06.20), died 2012.