Louisa Montagu Douglas Scott, Duchess of Buccleuch
Louisa Jane Montagu Douglas Scott, Duchess of Buccleuch and Queensberry( 26 August 1836 – 16 March 1912) was the daughter of James Hamilton, 1st Duke of Abercorn.
In 1884, she became the Duchess of Buccleuch and Duchess of Queensberry, the wife of William Henry Walter Montagu Douglas Scott, 6th Duke of Buccleuch& 8th Duke of Queensberry.
She was the paternal grandmother of Princess Alice, Duchess of Gloucester and of Marian Louisa, Lady Elmhirst, as well as the maternal great- grandmother of Prince William of Gloucester, Prince Richard, Duke of Gloucester and great- great- grandmother of Sarah, Duchess of York.
Tjuyu
Tjuyu( sometimes transliterated as Thuya or Thuyu) was an Egyptian noblewoman and the mother of queen Tiye, and the wife of Yuya.
She is the grandmother of Akhenaten, and great grandmother of Tutankhamun.
Mona Hopton Bell
Mona Hopton Bell( 1867- 1940) was a British artist, best known for her portraits of civic figures.
She was the grandmother of the painter Jean H. Bell.
Hannah Arnold
Hannah Arnold, also known as Hannah Waterman King, was the grandmother of Benedict Arnolds children.
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.
Anne Denman
Anne Denman( 1587–1661) was born in Olde Hall, Retford, Nottinghamshire.
Through a fortunate second marriage with Thomas Aylesbury, she became the grandmother of Lady Anne Hyde, Duchess of York and great- grandmother of Queen Mary II and Queen Anne.
Elizabeth FitzHugh
Elizabeth FitzHugh( 1455/65- before 10 July 1507) was an English noblewoman.
She is best known for being the grandmother of Catherine Parr, sixth queen consort to Henry VIII, and her siblings Anne Herbert, Countess of Pembroke, and William Parr, 1st Marquess of Northampton.
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.
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 bore
Woodville 14 children and stood trial on charges of witchcraft, of which she was exonerated.
Hubba bint Hulail
Hubba bint Hulail was the grandmother of Hashim ibn' Abd Manaf, thus the great- great- great- grandmother of the Islamic" Nabī"( Prophet) Muhammad ibn Abdullah.

Question: Who is Catherine Woodville, Duchess Of Buckingham's maternal grandmother?
Answer: Margherita del Balzo