Question: What nationality is Isabella Of England's mother?

Knowledge 1: Isabella of England
Isabella of England (1214 – 1 December 1241) was Holy Roman Empress, Queen of the Germans, and queen consort of Sicily.She was the fourth child and second daughter of John, King of England and Isabella of Angoulême. [SEP] Knowledge 2: Isabella of Angoulême
Isabella of Angoulême (c. 1186/1188 – 4 June 1246) was queen consort of England as the second wife of King John from 1200 until John's death in 1216.She was also suo jure Countess of Angoulême from 1202 until 1246.Isabella had five children by the king, including his heir, later Henry III.In 1220, Isabella married Hugh X of Lusignan, Count of La Marche, by whom she had another nine children.Some of Isabella's contemporaries, as well as later writers, claim that Isabella formed a conspiracy against King Louis IX of France in 1241, after being publicly snubbed by his mother, Blanche of Castile, for whom she had a deep-seated hatred.In 1244, after the plot had failed, Isabella was accused of attempting to poison the king.To avoid arrest, she sought refuge in Fontevraud Abbey, where she died two years later, but none of this can be confirmed.
Knowledge 1: Isabella of England
Isabella of England (1214 – 1 December 1241) was Holy Roman Empress, Queen of the Germans, and queen consort of Sicily.She was the fourth child and second daughter of John, King of England and Isabella of Angoulême. [SEP] Knowledge 2: Ælfthryth, wife of Edgar
Ælfthryth (– 1000 or 1001, also Alfrida, Elfrida or Elfthryth) was an English queen, the second or third wife of King Edgar of England.Ælfthryth was the first king's wife known to have been crowned and anointed as Queen of the Kingdom of England.Mother of King Æthelred the Unready, she was a powerful political figure.She was possibly linked to the murder of her stepson King Edward the Martyr and appeared as a stereotypical bad queen and evil stepmother in many medieval histories.
Knowledge 1: Ælfthryth, wife of Edgar
Ælfthryth (– 1000 or 1001, also Alfrida, Elfrida or Elfthryth) was an English queen, the second or third wife of King Edgar of England.Ælfthryth was the first king's wife known to have been crowned and anointed as Queen of the Kingdom of England.Mother of King Æthelred the Unready, she was a powerful political figure.She was possibly linked to the murder of her stepson King Edward the Martyr and appeared as a stereotypical bad queen and evil stepmother in many medieval histories. [SEP] Knowledge 2: Isabella of Angoulême
Isabella of Angoulême (c. 1186/1188 – 4 June 1246) was queen consort of England as the second wife of King John from 1200 until John's death in 1216.She was also suo jure Countess of Angoulême from 1202 until 1246.Isabella had five children by the king, including his heir, later Henry III.In 1220, Isabella married Hugh X of Lusignan, Count of La Marche, by whom she had another nine children.Some of Isabella's contemporaries, as well as later writers, claim that Isabella formed a conspiracy against King Louis IX of France in 1241, after being publicly snubbed by his mother, Blanche of Castile, for whom she had a deep-seated hatred.In 1244, after the plot had failed, Isabella was accused of attempting to poison the king.To avoid arrest, she sought refuge in Fontevraud Abbey, where she died two years later, but none of this can be confirmed.

Answer: France