As a metropolitan archdiocese, it has as suffragan dioceses: Acqui, Alba, Aosta, Asti, Cuneo, Fossano, Ivrea, Mondovì, Pinerolo, Saluzzo and Susa.

On 12 December 1074, the Pope wrote again, in considerable anger, because Cunibert had refused to attend the synod (venire contempsit); the Pope further advised Cunibert that another synod was going to be held toward the end of February 1075, which he was warned he must attend, and in the meantime he was to stop disturbing the monastery.

When the synod took place, Cunibert was suspended from office, and in a letter of 9 April 1075, Gregory again chastised him for breaking his promise and continuing to harass the monks of S. Michele.

The case dragged on, however, and on 24 November 1078, after Cunibert finally appeared at the Papal Court, the Pope gave final judgement, requiring Cunibert to return whatever he had taken from the monks, and the monks likewise, under the supervision of the Bishops of Asti and Aqui and the Abbot of Fruttuaria.

If the Bishop still wished to assert that the monastery had been built on land belonging to the diocese and was under his jurisdiction, he should come to the next synod and present his proofs; otherwise, he should hold his peace.

Before he retired to a monastery (the house of the Cistercians in Genoa) though, he was required to administer his diocese until a successor was elected.

One of the electors, the Primicerius Thomas de Pellizonus, was ill and was the subject of threats on the part of some disaffected citizens of Turin, and was therefore unable to attend the meeting.

The electoral assembly duly took place later that day, and de Canalibus was elected Bishop of Turin.

An electoral statement was drawn up immediately, and carried to the home of de Pellizonus, who approved and ratified the election, still on 16 May.

[14] Bishop Guido Canale had the task of annulling the marriage of Frederick of Saluzzo and Jacobina de Blandrata in 1333, on the grounds of affinity in the third degree.

On 21 May 1515, during the Tenth Session of the Fifth Lateran Council, Pope Leo X removed the diocese of Turin from metropolitan obedience of Milan, and made Turin an archiepiscopal see with the dioceses of Mondovì and Ivrea as its suffragans, other sees being added later.

Archbishop Girolamo della Rovere, in 1566, engaged in a public disputation with the Protestants of the Piedmont and was victorious, which was greeted with great satisfaction by the Duke.

In 1567, he conducted a visitation of the valley of the Stura, and preached to and conversed with many Protestants who had come into Piedmont from France, again with some success.

[20] During his episcopacy, Duke Emanuele Filiberto brought to Turin from his castle in Chambéry the Holy Shroud, the personal property of his family, and, on 29 December 1590, the body of St Maurice, the martyr.

[22] In 1577, Archbishop della Rovere began the construction of the church Santi Martiri for the Jesuits in Turin.

[23] Cardinal Gerolamo della Rovere died on 25 January 1592 while in conclave in Rome to elect a successor to Pope Innocent IX (Facchinetti).

At the same time the Risorgimento and the operations of Giuseppe Garibaldi had brought about a revolution in Rome, which drove Pope Pius IX into exile.

Bishop Guido Canale (1319–1348) found it necessary to completely reconstruct the Chapel of San Michele in the cathedral, which he endowed.

At Santa Maria di Rivoli, there was a chapter composed of a provost, an archpriest, a cantor, and five canons.

[40] The seminary of the diocese of Turin was established by Cardinal Girolamo della Rovere on 4 June 1567, in accordance with the decrees of the Council of Trent.

Bishop Goffredo di Montanaro presided at a diocesan synod which was held in S. Salvatore de Domno on Wednesday, 14 May 1270.