Hoel III, Count of Nantes

He was raised the son of Duke Conan III and Maud FitzRoy, an illegitimate daughter of King Henry I of England.

Bertha then became heiress to Duke Conan's lands in Brittany, while Hoèl was allowed to remain Count of Nantes.

[1] Supported by Geoffrey FitzEmpress, Henry II's younger brother in 1156 the Nantaise rebelled against Hoèl and drove him out of the country.

Control of Nantes was part of a larger strategy in the ongoing war between Stephen of England and Empress Matilda.

With his sister's marriage to Alan, 1st Earl of Richmond, Brittany entered the conflict on the side of Stephen.