Conan III, Duke of Brittany

He was the son of Alan IV, Duke of Brittany and Ermengarde of Anjou.

[a][b] He married Maud, an illegitimate daughter of King Henry I of England before 1113.

[2] Conan and Maud had three children that are known: On his death-bed in 1148, Conan III disinherited Hoel from succession to the duchy, stating that he was illegitimate and no son of his.

By this surprise move Bertha became his heiress and successor.

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