The bishop's name is usually spelled Van der Vorst. A native of Brabant, he was a Doctor in utroque iure (Civil and Canon Law). He was a chaplain of Pope Alexander VI. In 1526 he became an Auditor of the Rota in the Roman Curia. He was named Bishop of Acqui in the Consistory of 20 February 1534. He was sent to Germany as Nuntius of Pope Paul III, to announce the holding of the Council of Trent. Ludwig Pastor, History of the Popes (tr. R.F. Kerr) Volume XI (London: Kegan Paul Trench Trubner 1912), pp. 80-83, 89-92. Angelo Mercati; Bruno Katterbach (1931). Sussidi per la consultazione dell'archivio vaticano, a cura della direzione e degli archivisti. Vol. 2. Graz: Akademischen Druck- u. Verlags-anstalt. p. 94. Eubel, III, p. 113, with note 4.
A native of Saluzzo, Della Torre was a member of the family of the Counts of Lucerna e Valle. He taught theology and was master of novices for houses of his Order; he became a Prior and Commissary General. He served as synodal examiner of priests for the diocese of Turin. He had been Archbishop of Sassari on the island of Sardinia on the presentation of the King of Sardinia (1790–1797). He was transferred to the diocese of Acqui by Pope Pius VI on 24 January 1797. He was transferred to the archdiocese of Turin on 26 June 1805. He died on 8 April 1814. Iozzi, pp. 322-325. Ritzler-Sefrin, VI, pp. 93 with note 6; 315 with note 7; 423 with note 8. Michael Broers (2004). Politics and Religion in Napoleonic Italy: The War Against God, 1801-1814. Routledge. p. 157. ISBN978-1-134-50018-5. portrays Della Torre as weak, and a facilitator of, if not collaborator in the French plans for Italy.
De Broglie was confirmed as Bishop of Ghent by Pope Pius VII on 3 August 1807. He died on 20 July 1821. Notizie per l'anno 1808 (in Italian). Roma: Nella Stamparia del Chracas. 1808. p. 144. Ritzler-Sefrin, Hierarchia catholica VII, pp. 83, 202.
