By 78 BC however, Cyrenaica was formally organised as one administrative province together with Crete.
It became a senatorial province in 20 BC, like its far more prominent western neighbour Africa proconsularis.
After the Council of Nicaea in 325 AD, Cyrenaica had been recognized as an ecclesiastical province of the See of Alexandria.
[5] Here it was also the seat of an ancient bishopric of the Roman province of Libya Pentapolitana (Cirenaica).
[6][7] Today Berenice survives as a titular bishopric,[8] but the seat is vacant since October 27, 1968.