Nigizubi was a Roman–Berber town in the province of Numidia.
[2][3] during the Vandal Kingdom and Roman Empire.
[4] The exact location of the ancient town is now lost but it was somewhere in north-eastern Algeria.
The diocese ceased to effectively function following the Muslim conquest of the Maghreb in the 7th century.
Today Nigizubi Diocese survives as a titular bishopric[6][7] and the current bishop is Adolfo Eduardo José Bittschi Mayer, of Sucre.