The first bishop was Nicolo Crispigni. The last was Cardinal
Gaetano de Lai. ;
Bishops of Poggio Mirteto • Angelo Rossi (1874.12.21 – 1882.01.24), later Bishop of
Civitavecchia (Italy) (1882.01.24 – 1906.10.14), Bishop of
Tarquinia (Italy) (1882.01.24 – death 1906.10.14) • Luciano Saracani (1882.03.27 – 1888.06.01), emeritate as
Titular Bishop of
Epiphania (1888.06.01 – death 1892.08.23) • Paolo de Sanctis (1888.06.01 – 1896.06.22), emeritate as
Titular Archbishop of Sardica (1896.06.22 – death 1907) • Domenico Ambrosi (1896.06.22 – 1899.12.19), later Bishop of
Terracina (Italy) (1899.12.19 – 1921.08.17), Bishop of
Priverno (Italy) (1899.12.19 – 1921.08.17), Bishop of
Sezze (Italy) (1899.12.19 – death 1921.08.17) • Giuseppe Gandolfi (1899.12.14 – 1906.09.26), later Bishop of
Jesi (Italy) (1906.09.26 – death 1927.09.14) •
Archbishop-bishop Bartolomeo Mirra (1908.08.22 – death 1917.03.28), previously Titular Bishop of
Amathus in Palæstina (1898.02.11 – 1907.04.15), Titular Archbishop of Auxume (1907.04.15 – 1908.08.22) • Luigi Ferretti (1917.11.17 – 1924.03.24), later Bishop of
Macerata (Italy) (1924.03.24 – 1934.11.26), Bishop of
Tolentino (Italy) (1924.03.24 – 1934.11.26) •
Apostolic Administrator Gaetano De Lai (1924.08.07 – 1925.06.03), while
Cardinal-Bishop of Sabina (from 1925 of Sabina e Poggio Mirteto) (1911.11.27 – 1928.10.24),
Cardinal Vice-Dean of Sacred College of Cardinals (1919.03.23 – 1928.10.24),
Superior General of
Congregation of the Missionaries of Saint Charles Borromeo (Scalabrinians) (1924 – 1928.10.24) == Cardinal-bishops of Sabina-Poggio Mirteto ==