María de Salinas
María de Salinas, Baroness Willoughby de Eresby( ca. 1490 – 1539) was a noblewoman from Spain.
She served as confidante and lady- in- waiting to Catherine of Aragon, Queen of England.
Robert Welles, 8th Baron Willoughby de Eresby
Robert Welles, 8th Baron Willoughby de Eresby and 8th Baron Welles( died 19 March 1470), was the son of Richard Welles, 7th Baron Welles, and Joan Willoughby, 7th Baroness Willoughby de Eresby.
He was the prime mover in an uprising against Edward IV in 1470, although his actions were possibly orchestrated by Richard Neville, 16th Earl of Warwick.
Joan Welles, 9th Baroness Willoughby de Eresby
Joan Welles," de jure suo jure" 9th Baroness Willoughby de Eresby( d. before 23 January 1475), inherited the baronies of Welles and Willoughby at the death of her brother, Robert Welles, 8th Baron Willoughby de Eresby, in 1470.
Mary Bertie, Duchess of Ancaster and Kesteven
Mary Bertie, Duchess of Ancaster and Kesteven (died 19 October 1793), formerly Mary Panton, was the second wife of Peregrine Bertie, 3rd Duke of Ancaster and Kesteven.
She was the daughter of Thomas Panton of Newmarket (1697-1782), who was an equerry to King George II and master of the Thurlow Hunt, and his wife Priscilla (though she may have been illegitimate).
The duke's first wife, Elizabeth Blundell, died in 1743.
Mary Panton married the duke on 27 November 1750.
They had six children:
Following her marriage to the duke, Mary Panton's father Thomas obtained the post of Master of the King's Running Horses, and his son, also Thomas, later inherited this position.
In 1757, Sir Joshua Reynolds painted the couple, and another portrait by Reynolds of the duchess was painted between 1765 and 1771.
A watercolour miniature, by John Smart, dating to 1763, is held by the Nelson-Atkins Museum of Art.
From 1761 to 1793, the duchess held the position of Mistress of the Robes to Charlotte of Mecklenburg-Strelitz, Queen Charlotte.
On the birth of the future King William IV of the United Kingdom, the duchess recommended as wet-nurse a woman called Sarah Tuting, who was later acknowledged as her father's mistress.
The duchess died in Italy.
Peregrine Bertie, 13th Baron Willoughby de Eresby
Peregrine Bertie, 13th Baron Willoughby de Eresby( 12 October 1555 – 25 June 1601) was the son of Catherine Willoughby, 12th Baroness Willoughby de Eresby, and Richard Bertie.
Bertie was Lady Willoughby de Eresby's second husband, the first being Charles Brandon, Duke of Suffolk.
Peregrine Bertie's half- brothers, Henry and Charles Brandon, died as teenagers four years before his birth.
His sister Susan married the Earl of Kent and then the nephew of Bess of Hardwick.
Owing to religious politics, the parents had to move outside England and the boy was born at Wesel on the River Rhine.
Jane Heathcote-Drummond-Willoughby, 28th Baroness Willoughby de Eresby
Nancy Jane Marie Heathcote-Drummond-Willoughby, 28th Baroness Willoughby de Eresby (born 1 December 1934) is an English peer.
She is a holder of the office of Lord Great Chamberlain, which is majority controlled by the 7th Marquess of Cholmondeley.
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.
Priscilla Bertie, 21st Baroness Willoughby de Eresby
Priscilla Barbara
Elizabeth Bertie, 21st Baroness Willoughby de Eresby (16 February 1761 – 29 December 1828) was a daughter of the 3rd Duke of Ancaster and Kesteven and Mary Panton.
On 23 February 1779, she married Sir Peter Burrell (later 1st Baron Gwydyr) and they later had two children.
Through her grandmother Mary Wynn, Priscilla Bertie was a descendant of the Welsh princely house of Aberffraw.
On 8 July 1779, her brother, the 4th Duke of Ancaster and Kesteven, died of scarlet fever at the age of 22 and his dukedom passed to his uncle, but his barony of Willoughby de Eresby, as well as the office of Lord Great Chamberlain, went into abeyance between Priscilla and her sister Georgiana Charlotte, the Countess of Cholmondeley.
On 17 March 1780, however, the abeyance of the barony was terminated in Priscilla's favour, as the elder sister.
The office of Lord Great Chamberlain remains divided.
Clementina Drummond-Willoughby, 24th Baroness Willoughby de Eresby
Clementina Elizabeth Drummond- Willoughby, 24th Baroness Willoughby de Eresby( 2 September 1809, London – 13 November 1888, Grimsthorpe Castle) was a" suo jure" British baroness.
She was the daughter of Peter Robert Drummond- Burrell, 22nd Baron Willoughby de Eresby( died 1865) and Sarah Clementina, née Drummond( died 1865).
On the death of her brother, Albyric Drummond- Willoughby, 23rd Baron Willoughby de Eresby, in 1871, the Barony of Willoughby de Eresby fell into abeyance between her sister, Charlotte, and her.
On 13 November 1871, the abeyance of the barony was terminated in her favour.
She was born and baptised with the name of Clementina Elizabeth Burrell- Drummond.
And on 4 May 1872, her name was changed to Clementina Elizabeth Heathcote- Drummond- Willoughby by Royal Licence.
She married Sir Gilbert John Heathcote, 1st Baron Aveland on 8 October 1827 in Drummond Castle.
They became parents of: She was also Joint( 1/4) Hereditary Lord Great Chamberlain from 1870 to her death.
She was buried in Normanton, Rutland.
Joan Willoughby, 7th Baroness Willoughby de Eresby
Joan
Willoughby," de jure suo jure" 7th Baroness Willoughby de Eresby( c.1425- d. before 13 February 1462) was an English baroness in her own right.

Question: Who is Priscilla Bertie, 21St Baroness Willoughby De Eresby's maternal grandfather?
Answer: Thomas Panton