Roman Catholic Diocese of Capodistria

The Diocese of Capodistria (also Diocese of Capo d'Istria or Diocese of Koper) (Latin: Dioecesis Iustinopolitanus) was a Roman Catholic diocese located in the town of Koper (Capodistria in Italian) in southwestern Slovenia. In 1828, it was suppressed and united with the Diocese of Trieste to form the Diocese of Trieste e Capodistria.

Erected: 530 from the Diocese of Trieste
Latin Name: Iustinopolitanus

30 June 1828: United with the Diocese of Trieste to form the Diocese of Trieste e Capodistria

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