History

• 1090: Established as Diocese of Ploaghe (Italiano) / Plovacen(sis) (Latin)
• 1503.12.08: Suppressed (to Metropolitan Archdiocese of Sassari)
• 1968: Restored as Titular Episcopal See of Ploaghe (Italiano) / Plovacen(sis) (Latin)

Titular Bishop Titular Bishop (1989.05.10 – ...): Bishop Sebastião Roque Rabelo Mendes (89) Auxiliary Bishop emeritus of Belo Horizonte (Brazil)

Former Titular Bishops

• Titular Bishop:  Bishop John Michael Beahen (1977.05.11 – 1988.03.14)
• Titular Bishop:  Bishop Dante Battaglierin, S.X. (1969.03.20 – 1976.09.23)

as of 2019.03.14

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