Geoffrey I de Bretagne, S1015

980 - 1008  (28 years)

• Name	Geoffrey I de Bretagne
  Suffix	S1015
  Birth	980	Rennes, Ille-et-Vilaine, Bretagne, France
  Gender	Male
  Death	20 Nov 1008	Nantes, Loire-Atlantique, Pays de la Loire, France
  Person ID	I23116	Master
  Last Modified	9 Jul 2019

  
  

  Father	Conan I de Bretagne,   b. 927, Rennes, Ille-et-Vilaine, Bretagne, France d. 29 Jun 992, Conquereuil, Loire, Bretagne, France (Age 65 years)
  Mother	Ermangarde de Anjou,   b. 960, Anjou, Isere, Rhone-Alpes, France d. 27 Jun 992, Anjou, Isere, Rhone-Alpes, France (Age 32 years)
  Marriage	Le Mont Saint Michel, Manche, Basse-Normandie, France
  Family ID	F6059	Group Sheet  |  Family Chart

  
  

  Family	Havoise Avicia Hedwig De Normandie Bretagne,   b. 977, Rouen, Seine-Maritime, Haute-Normandie, France d. 21 Feb 1034, Rennes, Ille-et-Vilaine, Bretagne, France (Age 57 years)
  Marriage	996	, Normandy, France
  Children	+ 1. Eudes Penthievre, Duke of Brittany,   b. 999, Penthièvre, Morbihan, Bretagne, France d. 7 Jan 1079, Cesson, Seine-et-Marne, Île-de-France, France (Age 80 years)   2. Alan III De Tours Count Duke of Brittany,   b. Abt 1000, Rennes, Ille-et-Vilaine, Bretagne, France d. 1 Oct 1040, Rennes, Ille-et-Vilaine, Bretagne, France (Age 40 years)  [Father: Natural]   3. Odo Eudes Penthievre De Bretagne,   b. 1001, Penthièvre, Morbihan, Bretagne, France d. 7 Jan 1078, Penthièvre, Morbihan, Bretagne, France (Age 77 years)  [Father: Natural]
  Family ID	F6051	Group Sheet  |  Family Chart
  Last Modified	21 Jun 2019

  
  

• Event Map

  Birth - 980 - Rennes, Ille-et-Vilaine, Bretagne, France Marriage - 996 - , Normandy, France Death - 20 Nov 1008 - Nantes, Loire-Atlantique, Pays de la Loire, France  = Link to Google Earth

  
  

• Notes

  Geoffrey I, Duke of Brittany (980 – 20 November 1008), also known as Geoffrey of Rennes and Geoffrey Berengar, was the eldest son of Duke Conan I of Brittany. He was Count of Rennes (ruler of the Romano-Frankish civitas of Rennes), by right of succession. In 992 he assumed the title of Duke of Brittany, which had long been an independent state, but he had little control over much of Lower Brittany.[a] Life Geoffrey was the son of Duke Conan I, by his marriage to Ermengarde-Gerberga of Anjou.[1] He was the grandson of Judicael Berengar, Count of Rennes. 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.[2] In 996, at about the age of sixteen, Geoffrey entered into a dynastic alliance with Richard II, Duke of Normandy,[2] with a diplomatic double marriage between the two houses. The church-sanctioned marriage ceremonies were held at Mont Saint-Michel, on the Breton-Norman border, and while Geoffrey married Hawise of Normandy, daughter of Richard I of Normandy and sister of Richard II,[3] Richard married Judith of Brittany, Geoffrey's sister. Geoffrey and Hawise had four children: Alan III of Brittany (997-1040)[1] Evenus (born c. 998, died after 1037)[1] Odo, Count of Penthièvre (died 1079)[1] Adela, Abbess of Saint-Georges[4] Geoffrey died on 20 November 1008 while travelling on a pilgrimage to Rome.[4] Notes Geoffrey, Count of Rennes, assumed the title Duke of Brittany in 992. Brittany was not then part of the emerging Kingdom of France, but earlier Dukes had paid homage to the kings of the fledgling French state. 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. See William W. Kibler, ed., Medieval France: An Encyclopedia (New York: Garland Publishing, 1995), p. 148; The New international encyclopædia, Volume 3 (1918), p. 789 References Detlev Schwennicke, Europäische Stammtafeln: Stammtafeln zur Geschichte der Europäischen Staaten, Neue Folge, Band II (Verlag von J. A. Stargardt, Marburg, Germany, 1984). Tafel 75 Francis Palgrave, The History of Normandy and of England, Vol. III (Macmillan & Co. London, 1864), p. 80 Detlev Schwennicke, Europäische Stammtafeln: Stammtafeln zur Geschichte der Europäischen Staaten, Neue Folge, Band II (Verlag von J. A. Stargardt, Marburg, Germany, 1984). Tafel 79 George Edward Cokayne, ed. H. A. Doubleday, Geoffrey H. White, & Lord Howard de Walden, The Complete Peerage; or, A History of the House of Lords and All its Members from the Earliest Times, Vol. X (London: The St Catherine Press, Ltd, 1945), pp. 779-780