[1][2] The earliest events of the Christian history of Venosa are contained in the mythological martyrdoms of the Twelve Brothers[3] (286) and, in 303, of Felix, bishop of Thibiuca in Africa proconsularis, near Carthage.
The second recension of the martyrology mentions Venosa, but to do so two emendations of two different nonsensical place names are required.
[4] Lanzoni agrees with most scholars in placing Bishop Felix's death in Africa near Carthage, under the proconsul Annulinus.
The Benedictine abbey of Santissima Trinità di Venosa was founded in 1043, under the patronage of the Norman Duke Drogo.
[8] The only source for the incident is the Holy Roman Emperor, Frederick II, whose remark is preserved in a document in which he responds to a number of questions put to him by four bishops, sent as nuncios by Pope Gregory IX.
[12] Bishop Pietro Antonio Corsignano held a diocesan synod in Venosa on 4–6 April 1728.
Pope Pius VII was a prisoner of Napoleon in France from 1809 to 1815, and was both unable and unwilling to make new episcopal appointments.
The right of the king to nominate the candidate for a vacant bishopric was recognized, as in the Concordat of 1741, subject to papal confirmation (preconisation).
[21] On 27 June 1818, Pius VII issued the bull De Ulteriore, in which the metropolitanate of Acerenza was restored, with Anglona e Tursi, Potenza, Tricarico, and Venosa as suffragans; the diocese of Lavello was permanently suppressed and united to the Church of Venosa.