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The former Breton and French Catholic Diocese of Saint-Malo (Latin: Dioecesis Alethensis, then Dioecesis Macloviensis) existed from at least the 7th century until the French Revolution. Its seat was at Aleth up to some point in the 12th century, when it moved to Saint-Malo. Its territory extended over some of the modern departments of Ille-et-Vilaine, Côtes-d'Armor, and Morbihan. Until the 860s, it was often termed the bishopric of Poutrocoet.

Bishops of Aleth

Aaron
Suliac
Saint Malo or Maclovius 487–565
Gurval
Colfin oder Colaphin
Armael oder Armel
Enogat
Maëlmon, ca. 650
Godefroi or Geofroi c. 656
Oedmal
Hamon I.
Noedi
Ritwal
Tutamen
Ravili
Bili I.
Meen or Moene
Ebon or Edon
Guibon or Guibert
Hamon II.
Walter
Cadocanan
Rivallon I.
Judicaël I.
Réginald or Regimond
Menfenic
Budic or Benedikt
Docmaël or Idomaël
Johannes
Walter
Hélogard or Haelocar 811–816
Ermorus or Ermor 833–834
Iarnwaltus or Jarnuvalt 835–837
Main, Maen or Mahen 840–846
Salocon c. 848
Rethwalatrus or Retuvalart 857–867
Ratvomo or Ratwili 867–872
Bili II. ca. 880
Salvator (tenth century)
Rouaud oder Raoul um 990
Vakanz 999–1028
Hamon III. c. 1028
Martin c. 1054
Vakanz 1054–1062
Renaud or Rainaud c. 1062
Vakanz 1062–1085
Daniel I. c. 1085
Benedict (II.)
Judicaël II. 1089–1111
Rivallon II. 1112–1118
Daniel II. c. 1120
Donoald 1120–1143

Bishops of Saint-Malo

1146–1400

Jean de Châtillon 1146–1163
Albert or Aubert 1163–1184
Pierre Giraud or Géraud 1184–1218
Raoul or Rudolf 1219–1230
Geoffroi de Pontual 1231–1255
Nicolas de Flac 1254–1262
Phillipe de Bouchalampe 1263
Simon de Cliçon or Clisson 1264–1286
Robert du Pont 1287–1309
Raoul Rousselet 1310–1317
Alain Gonthier 1318–1333
Yves le Prévôt de Bois Boëssel 1333–1348
Guillaume Mahé 1348–1349
Pierre Benoît or de Guémené 1349–1359
Guillaume Poulart 1359–1374
Josselin de Rohan 1375–1389
Robert de la Motte d'Acigné 1389–1423

1423–1827

Guillaume de Montfort 1423–1432
Amaury de la Motte d'Acigné 1432–1434
Pierre Piédru 1434–1449
Jacques d'Espinay-Durestal 1450
Jean L'Espervier 1450–1486
Pierre de Montfort de Laval 1486–1493
Guillaume Briçonnet 1493–1513
Denis Briçonnet 1513–1535
François Bohier 1535–1569
Guillaume Ruzé 1570–1572
François Thomé 1573–1586
Charles de Bourgneuf 1586–1596
Jean du Bec 1598–1610
Guillaume le Gouverneur 1610–1630
- Octavien de Marillac Michel de Paris 1630
Achille de Harlay de Sancy 1631–1644
Ferdinand de Neufville 1644–1657
François de Villemontée 1658–1670
Sébastien de Guémadeuc 1671–1702
Vincent-François des Maretz 1702–1739
Jean-Joseph de Fogasses 1739–1767
Antoine-Joseph des Laurents 1767–1785
Gabriel Cortois de Pressigny 1785–1790
- Siméon L'Archant de Grimouville 1817

References

Sources

Gams, Pius Bonifatius (1873). Series episcoporum Ecclesiae catholicae: quotquot innotuerunt a beato Petro apostolo. Ratisbon: Typis et Sumptibus Georgii Josephi Manz. pp. 548–549. (Use with caution; obsolete)
Eubel, Conradus, ed. (1913). Hierarchia catholica, Tomus 1 (second ed.). Münster: Libreria Regensbergiana. p. 301. (in Latin)
Eubel, Conradus, ed. (1914). Hierarchia catholica, Tomus 2 (second ed.). Münster: Libreria Regensbergiana. p. 175.
Eubel, Conradus, ed. (1923). 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. p. 219.
Ritzler, Remigius; Sefrin, Pirminus (1952). Hierarchia catholica medii et recentis aevi V (1667-1730). Patavii: Messagero di S. Antonio. Retrieved 2016-07-06.
Jean, Armand (1891). Les évêques et les archevêques de France depuis 1682 jusqu'à 1801 (in French). Paris: A. Picard.
Pisani, Paul (1907). Répertoire biographique de l'épiscopat constitutionnel (1791-1802) (in French). Paris: A. Picard et fils.

48°39′N 2°02′W / 48.65°N 2.03°W / 48.65; -2.03