Conan IV, Duke of Brittany

Conan IV
Duke of Brittany
Reign	1156–1166
Predecessor	Odo II & Bertha
Successor	Constance
Earl of Richmond
Tenure	1146–1166
Predecessor	Alan
Successor	Constance
Born	c. 1138
Died	20 February 1171
Burial	Bégard Monastery
Spouse	Margaret of Huntingdon
Issue	Constance, Duchess of Brittany William
House	Penthièvre
Father	Alan, 1st Earl of Richmond
Mother	Bertha, Duchess of Brittany

Conan IV (c. 1138 – 20 February 1171), called the Young, was the Duke of Brittany from 1156 to 1166. He was the son of Bertha, Duchess of Brittany, and her first husband, Alan, Earl of Richmond. Conan IV was his father's heir as Earl of Richmond and his mother's heir as Duke of Brittany.^[a] Conan and his daughter Constance would be the only representatives of the House of Penthièvre to rule Brittany.
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