Geoffrey I, Duke of Brittany

Geoffrey I (c. 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.[lower-alpha 1]

Geoffrey I
Bornc. 980
Rennes, County of Rennes, Duchy of Brittany
Died20 November 1008
Nantes, Loire-Atlantique, Pays de la Loire, France
Burial
Brittany
SpouseHawise
IssueAlan III, Duke of Brittany
Odo, Count of Penthièvre
HouseHouse of Rennes
FatherConan I, Duke of Brittany
MotherErmengarde-Gerberga of Anjou

Life

Geoffrey was the son of Duke Conan I, by his marriage to Ermengarde-Gerberga of Anjou.[2] 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.[3]

Norman alliance

In 996, at about the age of sixteen, Geoffrey entered into a dynastic alliance with Richard II, Duke of Normandy,[3] 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,[4] daughter of Richard I of Normandy and sister of Richard II. Richard married Judith of Brittany, Geoffrey's sister.

Geoffrey and Hawise had four children:

Death

Geoffrey died on 20 November 1008 while travelling on a pilgrimage to Rome.[5]

Notes

  1. 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.[1]

References

  1. Smith 1995, p. 148.
  2. Bachrach 1993, p. 262.
  3. Palgrave 1864, p. 80.
  4. Keats-Rohan 1992, p. 47.
  5. Cokayne 1945, p. 779-780.

Sources

  • Bachrach, Bernard S. (1993). Fulk Nerra, the neo-Roman consul, 987-1040: A Political Biography of the Angevin Count. University of California Press.
  • Cokayne, George Edward (1945). Doubleday, H. A.; White, Geoffrey H.; de Walden, Howard (eds.). The Complete Peerage; or, A History of the House of Lords and All its Members from the Earliest Times. Vol. X. The St Catherine Press, Ltd.
  • Keats-Rohan, K.S.B. (1992). "The Bretons and Normans of England 1066–1154: the Family, the Fief and the Feudal Monarchy". Nottingham Medieval Studies. Brepols. 36(Jan): 42–78.
  • Palgrave, Francis (1864). The History of Normandy and of England. Vol. III. Macmillan & Co.
  • Smith, Julia M.H. (1995). "Brittany". In Kibler, William W. (ed.). Medieval France: An Encyclopedia. Garland Publishing.

See also


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