Bertha of Cornouaille, Duchess of Brittany

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ChartsAncestors of Adele La Force
Ancestors of Harriet Hanson Robinson
Bertha of Cornouaille, Duchess of Brittany, daughter of Conan III "le Gros," Duke of Brittany and Maud of England, was born about 1119.1 She died between 1162 and 1167.1

Bertha married (1) Alan II "the Black," Count of Brittany and Earl of Richmond, son of Stephen I, Count of Brittany and Hawise (---), about 1137;1 she married (2) Eudon II, Duke of Brittany, son of Geoffrey, Viscomte of Porhoët and Hawise.1

Family 2

Eudon II, Duke of Brittany d. bt 1185 - 1195
  • Geoffrey2
  • Alice2


  1. [S1947] Douglas Richardson, Royal Ancestry: A Study in Colonial and Medieval Families, Five vols. (Salt Lake City, Utah: s.p., 2013), 1:540 (Brittany 4), further cited as Richardson, Royal Ancestry.
  2. [S2257] Léa Chaillou, "Constance of Brittany's Family: Corrigenda et Addenda," Foundations: Journal of the Foundation for Medieval Genealogy 12 (2020): 114–125, at 125, further cited as Chaillou, "Constance of Brittany: Corrections."
This person was last edited on:20 Apr 2020