Changes in Ecclesiastical Jurisdictions in San Marino

Date	Change
785	Diocese of Montefeltro was established (became suffragan of Ravenna)
1784	Diocese of Montefeltro lost territory to Diocese of Sansepolcro
1977.02.22	Diocese of Montefeltro was renamed as Diocese of San Marino–Montefeltro (lost territory to Diocese of Sarsina, exchanged territory with Diocese of Rimini and became suffragan of Ravenna)