Roman Catholic Diocese of Corneto explained

The Roman Catholic Diocese of Corneto had its see in Corneto, an old name for Tarquinia. It was absorbed by the Roman Catholic Diocese of Civitavecchia-Tarquinia

See also

• Roman Catholic Diocese of Montefiascone
• Roman Catholic Diocese of Civitavecchia-Tarquinia
• Tarquinia Cathedral
• Catholic Church in Italy