Local enthusiasm for an Apostolic connection even led someone to forge a bull of investiture, an instrument which was not created for centuries.

His name occurs in the hagiographical work, "The Life of St. Agrippina", but the author of that work, a person of the eighth or ninth century, placed the sixth century Bishop Gregory of Agrigento in the wrong context.

[5] The earliest bishop of certain date is Potamius, who was believed to be a contemporary of Pope Agapetus I (535–36).

[6] Other scholars place him in the seventh century, in which case he would not be the earliest Bishop of Agrigento.

[5] The succession of bishops, interrupted by the Saracen invasion (879–1038),[7] began again in 1093 with Gerland of Agrigento.