Question: Who is Catherine Woodville, Duchess Of Buckingham's maternal grandmother?

Knowledge 1: Catherine Woodville, Duchess of Buckingham
Catherine Woodville (also spelled Wydville, Wydeville, or Widvile) (c. 1458 – 18 May 1497) was an English medieval noblewoman.She was the sister-in-law of King Edward IV of England and gave birth to several illustrious children.Catherine was the daughter of Richard Woodville, 1st Earl Rivers, and Jacquetta of Luxembourg.When her sister Elizabeth married King Edward IV, the King elevated and promoted many members of the Woodville family.Elizabeth Woodville's household records for 1466/67 indicate that Catherine was being raised in the queen's household.Sometime before the coronation of Elizabeth in May 1465, Catherine was married to Henry Stafford, 2nd Duke of Buckingham; both were still children.A contemporary description of Elizabeth Woodville's coronation relates that Catherine and her husband were carried on squires' shoulders due to their youth.According to Dominic Mancini, Buckingham resented his marriage to a woman of inferior birth.However, the couple had four children:
In 1483, Buckingham first allied himself to the Duke of Gloucester, helping him succeed to the throne as King Richard III, and then to Henry Tudor, leading an unsuccessful rebellion in his name.Buckingham was executed for treason on 2 November 1483.After Richard III was defeated by Henry Tudor at Bosworth in 1485, Catherine married the new king's uncle Jasper Tudor on 7 November 1485.After Jasper's death in 1495 - not later than 24 February 1496, - Catherine married Sir Richard Wingfield, who outlived her. [SEP] Knowledge 2: Jacquetta of Luxembourg
Jacquetta of Luxembourg, Countess Rivers (1415/16 – 30 May 1472) was the eldest daughter of Peter I of Luxembourg, Count of Saint-Pol, Conversano and Brienne, and his wife Margaret of Baux (Margherita del Balzo of Andria).She was a prominent, though often overlooked, figure in the Wars of the Roses.Through her short-lived first marriage to the Duke of Bedford, brother of King Henry V, she was firmly allied to the House of Lancaster.However, following the emphatic Lancastrian defeat at the Battle of Towton, she and her second husband Richard Woodville sided closely with the House of York.Three years after the battle and the accession of Edward IV of England, Jacquetta's eldest daughter Elizabeth Woodville married him and became Queen consort of England.Jacquetta boreWoodville 14 children and stood trial on charges of witchcraft, of which she was exonerated.
Knowledge 1: Catherine Woodville, Duchess of Buckingham
Catherine Woodville (also spelled Wydville, Wydeville, or Widvile) (c. 1458 – 18 May 1497) was an English medieval noblewoman.She was the sister-in-law of King Edward IV of England and gave birth to several illustrious children.Catherine was the daughter of Richard Woodville, 1st Earl Rivers, and Jacquetta of Luxembourg.When her sister Elizabeth married King Edward IV, the King elevated and promoted many members of the Woodville family.Elizabeth Woodville's household records for 1466/67 indicate that Catherine was being raised in the queen's household.Sometime before the coronation of Elizabeth in May 1465, Catherine was married to Henry Stafford, 2nd Duke of Buckingham; both were still children.A contemporary description of Elizabeth Woodville's coronation relates that Catherine and her husband were carried on squires' shoulders due to their youth.According to Dominic Mancini, Buckingham resented his marriage to a woman of inferior birth.However, the couple had four children:
In 1483, Buckingham first allied himself to the Duke of Gloucester, helping him succeed to the throne as King Richard III, and then to Henry Tudor, leading an unsuccessful rebellion in his name.Buckingham was executed for treason on 2 November 1483.After Richard III was defeated by Henry Tudor at Bosworth in 1485, Catherine married the new king's uncle Jasper Tudor on 7 November 1485.After Jasper's death in 1495 - not later than 24 February 1496, - Catherine married Sir Richard Wingfield, who outlived her. [SEP] Knowledge 2: Kaoru Hatoyama
After the elections of 2009, she became more widely known as the grandmother of Prime Minister Yukio Hatoyama and his politician brother Kunio Hatoyama.
Knowledge 1: Catherine Woodville, Duchess of Buckingham
Catherine Woodville (also spelled Wydville, Wydeville, or Widvile) (c. 1458 – 18 May 1497) was an English medieval noblewoman.She was the sister-in-law of King Edward IV of England and gave birth to several illustrious children.Catherine was the daughter of Richard Woodville, 1st Earl Rivers, and Jacquetta of Luxembourg.When her sister Elizabeth married King Edward IV, the King elevated and promoted many members of the Woodville family.Elizabeth Woodville's household records for 1466/67 indicate that Catherine was being raised in the queen's household.Sometime before the coronation of Elizabeth in May 1465, Catherine was married to Henry Stafford, 2nd Duke of Buckingham; both were still children.A contemporary description of Elizabeth Woodville's coronation relates that Catherine and her husband were carried on squires' shoulders due to their youth.According to Dominic Mancini, Buckingham resented his marriage to a woman of inferior birth.However, the couple had four children:
In 1483, Buckingham first allied himself to the Duke of Gloucester, helping him succeed to the throne as King Richard III, and then to Henry Tudor, leading an unsuccessful rebellion in his name.Buckingham was executed for treason on 2 November 1483.After Richard III was defeated by Henry Tudor at Bosworth in 1485, Catherine married the new king's uncle Jasper Tudor on 7 November 1485.After Jasper's death in 1495 - not later than 24 February 1496, - Catherine married Sir Richard Wingfield, who outlived her. [SEP] Knowledge 2: Hannah Arnold
Hannah Arnold, also known as Hannah Waterman King, was the grandmother of Benedict Arnolds children.

Answer: Margherita del Balzo