Count of Penthièvre Odo FitzGeoffery

999 - 1097  (98 years)

• Name	Odo FitzGeoffery  [1]
  Title	Count of Penthièvre
  Birth	999	Rennes, Ille-et-Vilaine, Bretagne, France   [1]
  Gender	Male
  Military - Old World	1066
  	Eudo is said to have outfitted one hundred ships and recruited nearly 25% of the forces that accompanied William the Conqueror when he invaded England
  Name	Eudo
  Death	7 Jan 1097	Cesson, Seine-et-Marne, Île-de-France, France   [1]
  Burial	Côtes-d'Armor, Bretagne, France   [1]
  Person ID	I30756	A Tree Called Smith
  Last Modified	21 Jul 2025

  
  

  Father	Count of Rennes and Duke of Brittany Geoffrey de Bretagne, I,   b. 970, Rennes, Ille-et-Vilaine, Bretagne, France d. 20 Nov 1008, Penthièvre, Morbihan, Bretagne, France (Age 38 years)
  Relationship	natural
  Mother	Countess of Rennes, Duchess of Brittany and Regent to her son Alan III, Duke of Brittany Hawise de Normandy,   b. Abt 978, Rouen, Seine-Maritime, Haute-Normandie, France d. 21 Feb 1034, Bretagne, France (Age 56 years)
  Relationship	natural
  Marriage	996
  Family ID	F13786	Group Sheet  |  Family Chart

  
  

  Family
  Children	1. 1st Lord Middleham and Spennithorne Ribald FitzOdo,   b. 1050, Morbihan, Bretagne, France d. 1131, Middleham, Yorkshire, England (Age 81 years)  [Father: natural]
  Family ID	F14110	Group Sheet  |  Family Chart
  Last Modified	21 Jul 2025

  
  

• Event Map

  Birth - 999 - Rennes, Ille-et-Vilaine, Bretagne, France Death - 7 Jan 1097 - Cesson, Seine-et-Marne, Île-de-France, France Burial - - Côtes-d'Armor, Bretagne, France  = Link to Google Earth

  
  

• Old World

  _Eudes Eudes of Penthièvre -- Odo of Rennes (c. 999–1079), Count of Penthièvre, was the youngest of the three sons of Duke Geoffrey I of Brittany and Hawise of Normandy, daughter of Richard I of Normandy. Eudon married Agnes of Cornouaille (Orguen Kernev), the daughter of Alan Canhiart, Count of Cornouaille and sister of Hoel II, Duke of Brittany…

  
  

• Sources

  [S6040] FindAGrave Old World, Eudes de Penthièvre 999-1079. Eudes was the Count of Penthièvre, Duke and Regent of Brittany. He was the youngest son of Duke Geoffrey I of Brittany and Hawise of Normandy, daughter of Richard I of Normandy. Odo married Agnes of Cornouaille, daughter of Prince Benedict V of Cornouaille and Guinodeon de Vannes, sister of Hoel II of Brittany. Eudes children with Agnes were: *Adele (to 1035-† after 1056/1057); *Geoffrey I, Duke of Penthièvre (d. 1093); *Brian (died 1084), participated in the conquest of England and received the honour of *Richmond, died without issue; *Alain le Roux (d. 1093), which held the honour of Richmond from 1070 to 1093, died without issue; *William d. after 1055/1057; *Robert d. after 1055/1057; *Richard d. after 1056/1057; *Alain le Noir († 1098), which held the honour of Richmond shortly after the death of his brother 1093, without posterity. *Stephen (d. 1137), comte de Guingamp de Trégor and Goëlo seigneur, then count of Penthièvre, and which holds the honour of Richmond from 1093. Eudes illegitimate children, *a daughter married to Enisan of Pleven *Bodin (brother of Bardulf) monk at the Abbey Notre-Dame of York *Ravensworth Bardulf *Ribald of middleham married Béatrice Taillebois *Arnold *Brian Earl of Cornwall At least two of Eudes sons (Alan and Brian) participated in the Norman conquest of England. His descendants became the junior branch of the Breton ducal family, which eventually gained control of the duchy in 1156 under Conan IV of Brittany. He was also known as Odo of Rennes https://www.findagrave.com/memorial/105554964/eudes-de_penthi%C3%A8vre