Rohan was nominated Archbishop of Cambrai by King Louis XVI on 28 January 1781, and received his bulls from Pope Pius VI dated 2 April 1781. Ritzler, Remigius; Sefrin, Pirminus (1958). Hierarchia catholica medii et recentis aevi VI (1730–1799). Patavii: Messagero di S. Antonio. p. 143, with n. 4. Retrieved 2016-07-06.