BRETAGNE Geoffrey

Abt 0980 - 1008  (28 years)

• Name	BRETAGNE Geoffrey
  Birth	Abt 0980	Rennes, Ille-et-Vilaine, Bretagne, France
  Gender	Male
  Death	20 Nov 1008	Rome, Roma, Lazio, Italy
  Notes	Name Geoffrey, Duke of Brittany [1] Geoffroi I, Duke of Brittany [2] Geoffroy de Bretagne [3] Parents He was the son of Conan I "le Tort" Duke of Brittany & his wife Ermengarde d'Anjou ([980]-20 Nov 1008). His parentage is confirmed by the Chronico Sancti Michaelis which records that "Gaufridus Dux Britanniæ filius Conani filii Juhelli Berengarii" died in 1008 "dum pergeret Romam causa orationis". [3][4] 992 Succession He succeeded his father in 992 as Geoffrey I, Duke of Brittany. A charter dated 1026 recalls that "Gaufridus, Conani Curvi filius" was killed "apud Concuruz prelium".[5] The Chronicon Kemperlegiense records the death "dum pergeret Romam" in 1008 of "Gauffridus Dux Britanniæ filius Conani filii Iuhaëlis Berengarii".[6][3] Geoffrey, Duke of Brittany, succeeded his father as Count of Rennes in 992 & held Brittany as a duchy under the sceptre of Normandy. Slain while returning from a pilgrimage to Palestine in 1008. Married in 996 to Hewise, daughter of Richard I, Duke of Normandy.[1] When Geoffrey succeeded to Brittany he had several problems: Blois was encroaching on his territory, Vikings were threatening his shores, and he had to decide whether to accept the protection offered by Anjou. He chose to align himself with the Duke of Normandy, marrying Hawise of Normandy, daughter of Richard I of Normandy in 996 [1] Geoffrey, Count of Rennes, assumed the title Duke of Brittany in 992 but the title was never recognized by the French king at the time and was not formerly legitimized until 1213. By the time of Count Geoffrey's reign, his claim to suzerainty over all of Brittany was weak and he had virtually no control over western Brittany and Nantes. [1] 996 Marriage He married between 996 and 999 Hawise of Normandy, legitimated daughter of Robert I, Duke of Normandy, by his second wife Gonnor. [2] He married in 996 Havise de Normandie, daughter of Richard I "Sans-Peur" Comte [de Normandie] & his second wife Gunnora --- (-21 Feb 1034). Guillaume of Jumièges names “Emma...secunda Hadvis...tertia Mathildis” as the three daughters of Richard and his wife “Gunnor ex nobilissima Danorum prosapia ortam”, adding that Havise married “Goiffredo Britannorum comiti” by whom she had “Alanum et Eudonem duces”.[7][8][3] 1008 Death Geoffroi I, Duke of Brittany, died 20 Nov 1008. His widow, Hawise, died 21 Feb 1034. [2] A charter dated 1008 records that, after the death of "Gaufrido comite Britanniæ", "filii eius Alanus et Eudo cum matre eorum Hadeguisia" restored the abbey of Saint-Méen.[9] "…Aduise matre eorum comitum…" signed the charter dated to [1013/22] under which "Alanus et Egio Britannorum monarchi" founded the priory of Livré "in pago Redonensi".[10] The Chronico Kemperlegiensi records the death "1034 IX Kal Mar" of "Haduisa comitissa Britanniæ, vidua Gauffridi"[137].[11][3] Issue Cawley reports that Duke Geoffroy I & his wife had three children, Alain, Eudes, and Adela.[3] Wikipedia shows four children for Geoffroy and Hawise: Alan III, Evenus, Odo, and Adela.[12] documented Alan (Bretagne) de Cornouaille, born Bretagne 997. Date and place from WikiTree data field. Alan (Duke of Brittany)[2] Alain de Bretagne was born in 997 and poisoned in Montgommery 1 Oct 1040. [3] Guillaume of Jumieges adds that Havise married “Goiffredo Britannorum comiti” by whom she had “Alanum et Eudonem duces”. [3]A charter dated 1008 records that, after the death of "Gaufrido comite Britanniæ", "filii eius Alanus et Eudo cum matre eorum Hadeguisia" restored the abbey of Saint-Méen. [3] Alan III of Brittany (997-1040).[13] Alain de Bretagne, born 997, poisoned Montgommery 1 Oct 1040 [3] Evenus Bretagne, born Bretagne, 998 Date and place from WikiTree data field. Evenus (c. 998 - aft. 1037). [13] Eudes (Bretagne) de Penthièvre, born Penthièvre, Morbihan, Bretagne, 997 Date and place from WikiTree data field. Eudon (Count or Duke of Brittany)[2] Eudes de Bretagne died in Cesson 1079 and was buried in Saint-Brieuc. [3] Guillaume of Jumieges adds that Havise married “Goiffredo Britannorum comiti” by whom she had “Alanum et Eudonem duces”. [3] A charter dated 1008 records that, after the death of "Gaufrido comite Britanniæ", "filii eius Alanus et Eudo cum matre eorum Hadeguisia" restored the abbey of Saint-Méen. [3] Odo, Count of Penthièvre (d. 1079).[13] Eudes de Bretagne, died Cesson 1079, buried Saint-Brieuc[3] Adele (Abbess of Saint-Georges at Rennes)[2] Adela de Bretagne died in 1067. "Abbatissa…Addela…soror…Alani Britannie ducis" issued a charter dated 1050, before "Conanum comitem…eius nepotem", relating to the rights of the abbey of Saint-Georges de Rennes[183]. The Chronicon Ruyensis Cœnobii records the death in 1067 of "Adela Abbatissa Conani Ducis amita"[184]. Abbess of Saint-Georges at Rennes. [3] Adela, Abbess of St. Georges. [14] Adela de Bretagne, died 1067. Abbess of Saint Georges at Rennes.[3] not documented but linked on WikiTree This person is one of four who are sometimes shown as children of Geoffroi de Bretagne and his wife Hawise de Normandie but whose relationship has not been confirmed by reliable sourcing: Emme (Bretagne) de St Sauveur, born Brittanay 10-8-1002 Date and place from WikiTree data field. Emma de Bretagne is not listed as a child of Geoffroi de Bretagne by Douglas Richardson. [2] Geoffroi (Bretagne) de Bretagne, born Rennes, Ile de Villaine, 1003 Date and place from WikiTree data field. Emme Lupus, born bretagne, 1008 Date and place from WikiTree data field. Robert (Ivry) d'Ivry, born Breherval, Eure 1020 Date and place from WikiTree data field. Research Notes There appear to be no contemporary or near-contemporary sources for Emme de St Sauveur, previously attached as a daughter of Geoffrey I, Duke of Brittany, and Hawise of Normandy. It seems she is first recorded in the sixteenth century, likely as part of an attempt to link certain English families with pre-Conquest Norman/French nobility. See the extensive notes on the profiles of Ivo or Yves St Sauveur de Cotentin and William FitzNigel or FitzNeel. Donnelly-2171 23:29, 11 October 2025 (UTC) Sources ↑ 1.0 1.1 1.2 1.3 See: Medieval France: An Encyclopedia, ed. William W. Kibler (NY: Garland Pub., 1995), p. 148; The New international Encyclopædia, Volume 3 (1918), p. 789. ↑ 2.0 2.1 2.2 2.3 2.4 2.5 2.6 Douglas Richardson. Royal Ancestry. Volume IV, page 481 ↑ 3.00 3.01 3.02 3.03 3.04 3.05 3.06 3.07 3.08 3.09 3.10 3.11 3.12 3.13 3.14 3.15 Charles Cawley. Foundation for Medieval Genealogy. Medeival Lands Database Geoffroy of Brittany Accessed Sept 10, 2018 jhd ↑ [Charles Michel Haudiquier and Jean Baptiste Haudiquier], editors, Recueil des historiens des Gaules et de la France, volume 10, Contenant sur-tout ce qui s'est passé depuis le commencement du règne de Hugues-Capet jusqu'à celui du Roi Henri I, fils de Robert le Pieux (Paris: Des Libraires Associés, 1760), p. 175; imaged, Internet Archive. ↑ Aurélien de Courson, editor, Cartulaire de l'Abbaye de Redon en Bretagne (Paris: Imprimerie Impériale, 1863), p. 246, Charter CCXCVI; imaged, Internet Archive. ↑ Stephani Baluzii Miscellaneorum, volume 1, Hoc est, collectio veterum monumentorum quae hactenus latuerant in variis codicibus ac bibliothecis (Paris: Francis Muguet, 1678), p. 521; imaged, Google Books. ↑ André du Chesne, editor, Historiae Normannorum scriptores antiqui, res ab illis per Galliam, Angliam, Apuliam, Capuae principatum, Siciliam, & Orientem gestas explicantes, ab anno Christi DCCCXXXVIII ad annum MCCXX. Insertae sunt monasteriorum fundationes variae, series episcoporum ac abbatum: genealogiae regum, ducum, comitum, et nobilium: plurima denique alia vetera, tam ad profanam quam ad sacram illorum temporum historiam pertinentia (Paris: No publisher, 1619), p. 247; imaged, Internet Archive. ↑ André du Chesne, Historiae Normannorum scriptores, p. 251 ↑ Arthur de la Borderie, editor, Recueil d'actes inédits des ducs et princes de Bretagne (XI, XII, XIII siècles) (Rennes: Imprimerie Ch. Catel, 1888 ) entry I p. 3; imaged, Internet Archive. ↑ Arthur de la Borderie, Recueil d'actes inédits des ducs et princes de Bretagne, entry II p. 6. ↑ [Haudiquier & Haudiquier], Recueil des historiens des Gaules et de la France, vol. 10 p. 294 ↑ Wikipedia entry for Geoffrey I, Duke of Brittany ↑ 13.0 13.1 13.2 Detlev Schwennicke, Europäische Stammtafeln: Stammtafeln zur Geschichte der Europäischen Staaten, Neue Folge, Band II (Marburg, Germany, J. A. Stargardt, 1984), Tafel 75. Cited by Wikipedia: Hawise_of_Normandy Accessed Sept 10l 2018 jhd ↑ Cokayne 1945, p. 779-780. Royal Ancestry by Douglas Richardson Vol. V page 486 http://en.wikipedia.org/wiki/Geoffrey_I,_Duke_of_Brittany
  Person ID	I59999	Freeman-Smith
  Last Modified	27 Jan 2026

  
  

  Father	RENNES Conan,   b. Abt 0950, Bretagne d. 27 Jun 0992, Conquereuil, Bretagne (Age 42 years)
  Relationship	natural
  Mother	ANJOU Ermengarde,   b. Abt 0966, Anjou Province, France d. 27 Jun 0992, France (Age 26 years)
  Relationship	natural
  Marriage	0973
  Family ID	F26012	Group Sheet  |  Family Chart

  
  

  Family	NORMANDIE Hawise,   b. 0978, Rouen, Seine Maritime, Normandy, France d. 21 Feb 1034, Rennes, Ille-et-Vilaine, Bretagne, France (Age ~ 55 years)
  Marriage	0996
  Children	1. BRETAGNE Alan,   b. 0997, Bretagne, France d. 01 Oct 1040, Vimoutiers, Orne, Basse-Normandie, France (Age ~ 43 years)  [Father: natural]  [Mother: natural]
  Family ID	F26638	Group Sheet  |  Family Chart
  Last Modified	27 Jan 2026