Conan III, Duke of Brittany

Conan III, also known as Conan of Cornouaille and Conan the Fat (Breton: Konan III a Vreizh, and Konan Kerne; c. 1093–1096 – September 17, 1148) was duke of Brittany, from 1112 to his death. He was the son of Duke Alan IV and Ermengarde of Anjou.

Conan III allied himself with Stephen of England in Stephen's war against the dispossessed Empress Matilda.

Family

He married Maud, an illegitimate daughter of King Henry I of England before 1113. Conan and Maud had three children that are known:

• Hoel – disinherited from the Ducal crown; Count of Nantes;
• Bertha (b.c. 1114) – married Alan of Penthièvre; upon Alan's death in 1146, she returned to Brittany; and
• Constance (b.c.1110) - married Alan de la Zouche

Succession

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. However, Hoel was to retain the county of Nantes.

See also

• Dukes of Brittany family tree

Conan III, Duke of Brittany House of Cornouaille Born: c.1053 Died: 17 September 1148
Regnal titles
Preceded by Alan IV	Duke of Brittany 1112–1148	Succeeded by Bertha