question: What nationality is Amadeus Viii, Duke Of Savoy's mother?
context: Title: Amadeus VIII, Duke of Savoy
  Passage: Amadeus VIII( 4 September 1383 – 7 January 1451) was a Savoyard nobleman, the son of Amadeus VII, Count of Savoy and Bonne of Berry. He was surnamed the Peaceful. After the death of his father in 1391, his mother acted as a regent, because of his youth. He was an antipope of the Catholic Church from 1439 to 1449 as Felix V, in opposition to Popes Eugene IV and Nicholas V.
  Title: Bonne of Berry
  Passage: Bonne of Berry( 1362/1365 – 30 December 1435) was the daughter of John, Duke of Berry, and Joanna of Armagnac. Through her father, she was a granddaughter of John II of France.
answer: France
citations: Bonne of Berry Amadeus VIII, Duke of Savoy