Yolande of Brittany was the daughter of Peter I of Brittany, Knt., Duke of Brittany, Earl of Richmond, by his 1st wife, Alix, daughter of Guy de Thouars and Constance of Brittany. Yolande married Hugh XI of Lusignan, son of Hugh X of Lusignan and Isabella of Angoulême in January 1235. Yolande's maritagium included the comté of Penthièvre and the seigneuries of Fère en Tardenois, Chilli, and Longjumeau.
Yolande and Hugh's children were:
Hugues XII & IV & III de Lusignan Married Jeanne de Fougères
Guy de Lusignan
Geoffrey de Lusignan
Alice de Lusignan . Married Gilbert de Clare, 7th Earl of Gloucester
Mary de Lusignan . Married Robert de Ferrers, 6th Earl of Derby
Isabelle de Lusignan, lady of Belleville . Married Maurice de Belleville
Yolande de Lusignan . Married Pierre I, seigneur of Préaux