Question: Who is Katherine Brandon, Duchess Of Suffolk's mother?

Knowledge 1: Katherine Brandon, Duchess of Suffolk
Katherine Brandon, Duchess of Suffolk, "suo jure" 12th Baroness Willoughby de Eresby (22 March 1519 – 19 September 1580), was an English noblewoman living at the courts of King Henry VIII, King Edward VI andQueen Elizabeth I. She was the fourth wife of Charles Brandon, 1st Duke of Suffolk, who acted as her legal guardian during his third marriage to Henry VIII's sister Mary.Her second husband was Richard Bertie, a member of her household.Following Charles Brandon's death in 1545, it was rumoured that King Henry had considered marrying Catherine as his seventh wife, while he was still married to his sixth wife, Catherine Parr, who was Katherine's close friend.An outspoken supporter of the English Reformation, she fled abroad to Wesel and later the Grand Duchy of Lithuania during the reign of Queen Mary I, to avoid persecution. [SEP] Knowledge 2: William Willoughby, 11th Baron Willoughby de Eresby
William Willoughby, 11th Baron Willoughby de Eresby (1482–1526), was an English baron and the largest landowner in Lincolnshire.He was the son of Sir Christopher Willoughby (died c. 1498) and Margaret or Marjery Jenney (daughter of Sir William Jenney of Knodishall, Suffolk, Justice of the King's Bench).In 1499, he succeeded as Baron Willoughby de Eresby.He married first Mary Hussey (born 1484), youngest child of Sir William Hussey, Chief Justice of the King’s Bench.Secondly, on 5 June 1516, he married María de Salinas, the Spanish-born lady-in-waiting to Catherine of Aragon.Grimsthorpe Castle was granted by Henry VIII to the de Eresby family on the occasion of Maria's marriage.By his second wife, Willoughby had a daughter, Catherine, who succeeded him in the barony on his death in 1526.She was betrothed to Henry Brandon, 1st Earl of Lincoln, the son of Charles Brandon, 1st Duke of Suffolk, and Princess Mary, the sister of Henry VIII.When Princess Mary died in 1533, fourteen-year-old Catherine was hastily married to the Duke of Suffolk, her fiance's father, who was twenty-five years her senior.In 1546, there were rumours that Henry VIII wished to marry the widowed Catherine.Willoughby died on 14 October 1526 at Parham, Suffolk and was buried on 19 October at All Saints Church, Mettingham, Suffolk.
Knowledge 1: William Willoughby, 11th Baron Willoughby de Eresby
William Willoughby, 11th Baron Willoughby de Eresby (1482–1526), was an English baron and the largest landowner in Lincolnshire.He was the son of Sir Christopher Willoughby (died c. 1498) and Margaret or Marjery Jenney (daughter of Sir William Jenney of Knodishall, Suffolk, Justice of the King's Bench).In 1499, he succeeded as Baron Willoughby de Eresby.He married first Mary Hussey (born 1484), youngest child of Sir William Hussey, Chief Justice of the King’s Bench.Secondly, on 5 June 1516, he married María de Salinas, the Spanish-born lady-in-waiting to Catherine of Aragon.Grimsthorpe Castle was granted by Henry VIII to the de Eresby family on the occasion of Maria's marriage.By his second wife, Willoughby had a daughter, Catherine, who succeeded him in the barony on his death in 1526.She was betrothed to Henry Brandon, 1st Earl of Lincoln, the son of Charles Brandon, 1st Duke of Suffolk, and Princess Mary, the sister of Henry VIII.When Princess Mary died in 1533, fourteen-year-old Catherine was hastily married to the Duke of Suffolk, her fiance's father, who was twenty-five years her senior.In 1546, there were rumours that Henry VIII wished to marry the widowed Catherine.Willoughby died on 14 October 1526 at Parham, Suffolk and was buried on 19 October at All Saints Church, Mettingham, Suffolk. [SEP] Knowledge 2: Christopher Willoughby, 10th Baron Willoughby de Eresby
Sir Christopher Willoughby, "de jure" 10th Baron Willoughby de Eresby (1453 – between 1 November 1498 and 13 July 1499), was heir to his second cousin, Joan Welles, 9th Baroness Willoughby de Eresby, in her own right Lady Willoughby, as well as great-grandson and heir male to William Willoughby, 5th Baron Willoughby de Eresby.Christopher Willoughby was also heir to his elder brother, Robert Willoughby, who died unmarried and underage on 24 March 1467.He was unable to enjoy his inherited title as a result of the attainders of his cousin Joan Welles' father, Richard Welles, 7th Baron Welles, and brother, Robert Welles, 8th Baron Willoughby de Eresby.
Knowledge 1: Katherine Brandon, Duchess of Suffolk
Katherine Brandon, Duchess of Suffolk, "suo jure" 12th Baroness Willoughby de Eresby (22 March 1519 – 19 September 1580), was an English noblewoman living at the courts of King Henry VIII, King Edward VI andQueen Elizabeth I. She was the fourth wife of Charles Brandon, 1st Duke of Suffolk, who acted as her legal guardian during his third marriage to Henry VIII's sister Mary.Her second husband was Richard Bertie, a member of her household.Following Charles Brandon's death in 1545, it was rumoured that King Henry had considered marrying Catherine as his seventh wife, while he was still married to his sixth wife, Catherine Parr, who was Katherine's close friend.An outspoken supporter of the English Reformation, she fled abroad to Wesel and later the Grand Duchy of Lithuania during the reign of Queen Mary I, to avoid persecution. [SEP] Knowledge 2: Christopher Willoughby, 10th Baron Willoughby de Eresby
Sir Christopher Willoughby, "de jure" 10th Baron Willoughby de Eresby (1453 – between 1 November 1498 and 13 July 1499), was heir to his second cousin, Joan Welles, 9th Baroness Willoughby de Eresby, in her own right Lady Willoughby, as well as great-grandson and heir male to William Willoughby, 5th Baron Willoughby de Eresby.Christopher Willoughby was also heir to his elder brother, Robert Willoughby, who died unmarried and underage on 24 March 1467.He was unable to enjoy his inherited title as a result of the attainders of his cousin Joan Welles' father, Richard Welles, 7th Baron Welles, and brother, Robert Welles, 8th Baron Willoughby de Eresby.

Answer: María de Salinas