ACQUAVIVA, DIOCESE of. - In the Roman synod of 465 and in the subsequent ones down to 502, two bishops appear respectively, Paolo and Benigno, with the title of A.
In the seventeenth century, F. Ughelli wrote that some placed that episcopal see in Campania, others in Apulia, and still others in Roman Etruria. Ughelli subscribed to the opinion of the latter, whereas in more recent times T. Mommsen was unable to decide between Etruria and Apulia. L. Duchesne favours Etruria, though with some uncertainty, while De Vit does not hesitate to embrace Ughelli’s opinion, as F. Lanzoni has recently done, whereas J. Fraikin still sided with Apulia.
A. in Etruria was a « mutatio » (station) on the via Flaminia, not far from Civita Castellana, east of Soratte. Its ecclesiastical territory must have extended along the consular road, in the direction of the diocese of Roma. It is probable that the ancient Christian cemeteries of Rignano and Morlupo, in the region of the Capenati, belonged to the diocese of A., which disappeared after 502. Its territory was probably annexed to the diocese of Porto.