Civita Castellana
The Diocese of Civita Castellana () is a Roman Catholic ecclesiastical territory in Latium, central Italy. It has existed in the current form since 1986, when the Diocese of Nepi e Sutri was united into the Diocese of Civita Castellana, Orte e Gallese. The diocese of Gallese had been added to the dioceses of Civita Castellana and Orte in 1805. The name of the diocese was shortened in 1991, in accordance with recently developed Vatican policies. The diocese of Civita Castellana is immediately subject to the Holy See (the Papacy).