The former Breton and French diocese of Tréguier existed in Lower Brittany from about the sixth century, or later, to the French Revolution. Its see was at Tréguier, in the modern department of Côtes-d'Armor.

The title continues in the contemporary diocese of Saint-Brieuc and Tréguier.

History

St. Tudgual (Tugdual, Tudual), Kershaw, pp. 220, 246–247. said to be the nephew of St. Brieuc (who had emigrated from Cardigan), was a bishop who came to Brittany from overseas (ScotlandSecond Life: La Borderie. p. 14.),He came with 72 disciples (the same number of disciples as Jesus had), according to the First Life and the Third Life. He went to the court of King Childebert with twelve disciples (the same number of apostles as Jesus had): La Borderie, p. 13, 25. and was appointed by his uncle Brieuc at the close of the fifth century as superior of the monastery of Tréguier, which Tudual had founded. The biography of St. Tudual, composed after the middle of the ninth century, relates that Tudual, wishing to confirm his authority by royal approval, travelled to the court of King Childebert I, who ordered him consecrated Bishop of Tréguier.La Borderie, p. 13: Tunc rex dedit illi episcopatum et praesulatum super suas parrochias et sanctis qui cum eo venerunt, et ibi eum ordinare fecit in episcopali gradu. ('Then the king gave him the diocese and the episcopal control over his parishes and the saints who had come with him, and there ordered him to be ordained a bishop.') And on that day he sang a Mass in the presence of the King.... Louis Duchesne, however, argued that it was King Nomenoe who, in the middle of the ninth century, had the monastery of Tréguier raised to the dignity of an episcopal see.Duchesne, II (1910), pp. 390–392.

Numerous synods were held at Tréguier in the fourteenth and fifteenth centuries, and passed regulations for the discipline of the Breton churches.CATHOLIC ENCYCLOPEDIA: Saint-Brieuc

Bishops to 1400

c. 1032: c. 1045: Martin c. 1086: Hugo I de Saint-Pabutral c. 1110–c. 1128: Raoul I c. 1150–c. 1175: William II 1175–1179: Ives I Hougnon 1179–c. 1220: Geoffroi I Loiz c. 1224–c. 1237: Stephan c. 1238: Peter I 1255–c. 1265: Hamon c. 1266–c. 1271: Alain I de Lezardrieu c. 1284: 1286–c. 1310: c. 1317: c. 1324: 1327–1330: 1330–1338: 1339–c. 1345: c. 1354: 1355–1358: 1358–1362: 28 November 1362 – 1371: 12 June 1372 – 1378: 1378–1383: 1383–1384: 1385–3 May 1401:

1400 to 1600

1401–1403: Ives III Hirgouët 1404–1408: Bernard de Peyron 1408–1416: Christophe I d'Hauterive 15. December 1417 – 1422: Matthieu du Kosker 29. April 1422 – 1430: Jean III de Bruc 1430–27. August 1435: Pierre IV Piédru (or Predou) (also Bishop of Saint-Malo) 1435–1441: Raoul II Rolland 4. May 1442 – 1453: Jean IV de Plouec 16. March 1454–23. September 1464: Jean V de Coetquis 8. January 1466 – 1479: Christophe II du Châtel 1480–1483: Cardinal Raphaël de Saint-Georges 1483–1502: Robert II Guibé 1502–7. March 1505: Jean VI de Talhouët 22 November 1505–16. November 1537: Antoine du Grignaux 14 June 1538 – 1540 or 1541: Louis de Bourbon-Vendôme 1541–1544: Cardinal Hippolyte d'Este 1544–1545: Jean VII de Rieux 8 June 1545 – 1547: François I de Manaz 1548–27. October 1566: Jean VIII 1566–1572: Claude de Kernovenoy 1572–1583: Jean-Baptiste Le Gras 1583–1593: François II de La Tour 1593–29. October 1602: Guillace III du Halgoët

1600 to 1800

1604–29. July 1616: Georges-Louet-Adrien d'Amboise 1616–1620: Pierre V Cornullier 1620–14. September 1635: Gui Champion 1636–19. August 1645: Noël des Landes' 1646–1679: Balthasar Grangier de Liverdis 1679–1686: François-Ignace de Baglion 1686–15. May 1694: Eustache Le Sénéchal de Carcado (or Kercado) 1694–1731: Olivier Jégou de Kervilio 1731–1745: François-Hyacinthe de La Fruglaye de Kervers 1746–30. August 1761: Charles-Gui Le Borgne de Kermorvan 1761–1766: Joseph-Dominique de Chaylus 26. April 1767 – 1773: Jean-Marc de Royère 1773–1775: Jean-Augustin de Frétat de Sarra 6 August 1775 – 1780: Jean-Baptiste-Joseph de Lubersac 1780–1790 (1801): Augustin-René-Louis Le Mintier

See also Catholic Church in France List of Catholic dioceses in France

References

Bibliography Reference works pp. 641–642. (Use with caution; obsolete) (in Latin) p. 494. (in Latin) p. 254. p. 317. pp. 342. p. 387. pp. 413–414.

Studies

second edition