“ Henry d’Avaugour, heir of this dynasty, was dispossessed of the countship in 1235 by the duke of Brittany, Pierre Mauclerc, who gave it as dowry to his daughter, Yolande, on her marriage in 1238 to Hugh of Lusignan, count of La Marche. Duke John I. of Brittany, Yolande’s brother, seized the count ship on her death in 1272. In 1337 Joan of Brittany brought Penthièvre to her husband, Charles de Chatillon-Blois. In 1437 Nicole de Blois, a descendant of this family, married Jean de Brosse, and was deprived of Penthièvre by the duke of Brittany, Francis II., in 1465. ”