Ancient Diocese of Boulogne

The former French Catholic diocese of Boulogne existed from 1567 to the French Revolution. It was created after the diocese of Thérouanne was suppressed because of war damage to the see; effectively this was a renaming. It belonged to the Archdiocese of Reims. The Concordat of 1801 suppressed the diocese of Boulogne, transferring its territory to the diocese of Arras.^[1] The seat was the Boulogne Cathedral, demolished in 1793.

Bishops

Gams, Pius Bonifatius (1873). Series episcoporum Ecclesiae catholicae: quotquot innotuerunt a beato Petro apostolo. Ratisbon: Typis et Sumptibus Georgii Josephi Manz. (Use with caution; obsolete)
Eubel, Conradus, ed. (1913). Hierarchia catholica, Tomus 1 (second ed.). Münster: Libreria Regensbergiana. (in Latin)
Eubel, Conradus, ed. (1914). Hierarchia catholica, Tomus 2 (second ed.). Münster: Libreria Regensbergiana. (in Latin)
Gulik, Guilelmus (1923). Eubel, Conradus (ed.). Hierarchia catholica, Tomus 3 (second ed.). Münster: Libreria Regensbergiana.
Gauchat, Patritius (Patrice) (1935). Hierarchia catholica IV (1592-1667). Münster: Libraria Regensbergiana. Retrieved 2016-07-06.
Ritzler, Remigius; Sefrin, Pirminus (1952). Hierarchia catholica medii et recentis aevi V (1667-1730). Patavii: Messagero di S. Antonio. Retrieved 2016-07-06.
Ritzler, Remigius; Sefrin, Pirminus (1958). Hierarchia catholica medii et recentis aevi VI (1730-1799). Patavii: Messagero di S. Antonio. Retrieved 2016-07-06.