Background
She was the daughter of Hugh X de Lusignan, "le Brun", Seigneur de Lusignan, Count of Louisiana Marche and Isabella of Angoulême, queen dowager of England.
She was the daughter of Hugh X de Lusignan, "le Brun", Seigneur de Lusignan, Count of Louisiana Marche and Isabella of Angoulême, queen dowager of England.
Isabella was half-sister to Henry III of England. She was Dame de Beauvoir-sur Mer et de Mercillac. Isabella"s year of birth is unknown.
She is mentioned in the Treaty of Vendome in March 1227.
Isabella was betrothed by the treaty of Vendôme in March 1227 to Alfonso, Count of Poitiers, third surviving son of Louis VIII of France and Blanche of Castile. The marriage contract was however broken off and Alfonso instead married Joan, Countess of Toulouse.
Isabella was firstly married to Maurice IV, Sire of Craon. They had the following children:
Oliver (died 24 August 1285), Archbishop of Tours
Margaret (died after 16 August 1280), married Renaud de Pressigny
Jeanne (died before 1288), married Gerard II of Chabot and had a daughter named Isabella.
A charter dated October 1252 records a dispute with Isabella and her husband"s will.
Only one year after Maurice"s death, Isabella remarried to Geoffery de Rancon, relative of a much older Geoffrey de Rancon. They had no children. Isabella was granted a payment by her half-brother King Henry III in 1254.
After thirteen years of marriage Geoffery died.
She had several grandchildren.