Blanche of Navarre, Duchess of Brittany
Blanche of Navarre( 1226 – 12 August 1283), also known as Blanche of Champagne, was the daughter of Theobald the Troubador, King of Navarre and Count of Champagne, and his second wife Agnes of Beaujeu.
She was a member of the House of Champagne.
By her marriage to John I, Duke of Brittany, she became Duchess consort of Brittany.
Joan II, Countess of Burgundy
Joan II, Countess of Burgundy( 15 January 1292 – 21 January 1330), was Queen of France by marriage to Philip V of France, and ruling Countess of Burgundy and Countess of Artois.
She was the eldest daughter and heiress of Otto IV, Count of Burgundy, and Mahaut, Countess of Artois.
Marie of France, Countess of Champagne
Marie of France (1145 – March 11, 1198) was a French princess and Countess consort of Champagne.
She was regent of the county of Champagne in 1179-1181, and in 1190-1197.
She was the elder daughter of King Louis VII of France and Duchess Eleanor of Aquitaine.
Her parents' marriage was annulled in 1152, and custody of Marie and her sister, Alix, was awarded to their father.
Both Louis and Eleanor remarried quickly, with Eleanor becoming Queen of England as the spouse of King Henry II.
Marie had numerous half-siblings, including kings Philip II of France and John and Richard I of England.
Catherine of France, Countess of Charolais
Catherine of France( 1428 – 13 July 1446) was a French princess and a countess of Charolais, the first spouse to Charles I, Duke of Burgundy.
She was the fourth child and second daughter of Charles VII of France and Marie of Anjou.
Princess Marie of Hanover
Princess Marie of Hanover (2 December 1849 – 4 June 1904) was the younger daughter of King George V of Hanover and of his wife, Princess Marie of Saxe-Altenburg.
Eleanor of Aquitaine
Eleanor of Aquitaine (1122 – 1 April 1204) was queen consort of France (1137–1152) and England (1154–1189) and duchess of Aquitaine in her own right (1137–1204).
As a member of the Ramnulfids (House of Poitiers) rulers in southwestern France, she was one of the wealthiest and most powerful women in western Europe during the High Middle Ages.
She was patron of literary figures such as Wace, Benoît de Sainte-Maure, and Bernart de Ventadorn.
She led armies several times in her life and was a leader of the Second Crusade.
As the duchess of Aquitaine, Eleanor was the most eligible bride in Europe.
Three months after becoming duchess upon the death of her father, William X, she married King Louis VII of France, son of her guardian, King Louis VI.
As queen of France, she participated in the unsuccessful Second Crusade.
Soon afterwards, Eleanor sought an annulment of her marriage, but her request was rejected by Pope Eugene III.
However, after the birth of her second daughter Alix, Louis agreed to an annulment, as 15 years of marriage had not produced a son.
The marriage was annulled on 21 March 1152 on the grounds of consanguinity within the fourth degree.
Their daughters were declared legitimate, custody was awarded to Louis, and Eleanor's lands were restored to her.
As soon as the annulment was granted, Eleanor became engaged to the Duke of Normandy, who became King Henry II of England in 1154.
Henry was her third cousin and 11 years younger.
The couple married on Whitsun, 18 May 1152, eight weeks after the annulment of Eleanor's first marriage, in Poitiers Cathedral.
Over the next 13 years, she bore eight children: five sons, three of whom became kings; and three daughters.
However, Henry and Eleanor eventually became estranged.
Henry imprisoned her in 1173 for supporting their son Henry's revolt against him.
She was not released until 6 July 1189, when her husband Henry died and their second son, Richard the Lionheart, ascended the throne.
As queen dowager, Eleanor acted as regent while Richard went on the Third Crusade.
Eleanor also lived well into the reign of Richard's heir and her youngest son, John.
Marie of Orléans, Viscountess of Narbonne
Marie of Orléans( 19 December/ September 1457 – 1493) was the elder sister of King Louis XII of France.
Due to her marriage to John of Foix, she was Countess of Étampes and Viscountess of Narbonne.
Marie was the eldest daughter of Charles, Duke of Orléans, and his third wife Marie of Cleves.
After a previous betrothal to Peter II, Duke of Bourbon, she married John of Foix on 8 September 1476.
Marie of France, Duchess of Bar
Marie of France (18 September 1344 – 15 October 1404) was the sixth child and second daughter of John II of France and Bonne of Bohemia.
Scholastique of Champagne
Scholastique of Champagne( 1172–1219) was the daughter of Marie, Countess of Champagne and Henry I, Count of Champagne.
Marie, Countess of Ponthieu
Marie of Ponthieu( 17 April 1199 – 21 September 1250) was" suo jure" Countess of Ponthieu and Countess of Montreuil, ruling from 1221 to 1250.

Question: Where was the place of death of Marie Of France, Countess Of Champagne's mother?
Answer: Poitiers