Question: Name the mother of Edward Stafford, 4th Baron Stafford, who was the daughter of the English nobleman and politician Edward Stanley, 3rd Earl of Derby?

full_context: Document 1: William Stanley, 3rd Baron Monteagle: William Stanley, 3rd Baron Monteagle (1528–1581), of Hornby Castle, Lancashire, was an English politician.
Document 2: Mary Brandon, Baroness Monteagle: Lady Mary Brandon, Baroness Monteagle (2 June 1510 – between 1540/1544), was an English noblewoman, and the daughter of Charles Brandon, 1st Duke of Suffolk, by his second wife, Anne Browne. Mary was the wife of Thomas Stanley, 2nd Baron Monteagle, by whom she had six children.
Document 3: Edward Stafford, 3rd Baron Stafford: Edward Stafford, 3rd Baron Stafford (7 January 1535 – 18 October 1603) was the second surviving son of Henry Stafford, 1st Baron Stafford and Ursula Pole, the younger brother of Henry Stafford, 2nd Baron Stafford. He served in Parliament for Stafford and succeeded his brother to the barony in 1566.
Document 4: Edward Stanley Gibbons: Edward Stanley Gibbons (21 June 1840 – 17 February 1913) was an English stamp dealer and founder of Stanley Gibbons Ltd, publishers of the famous Stanley Gibbons stamp catalogue and other stamp-related books and magazines.
Document 5: John Talbot, 3rd Earl of Shrewsbury: John Talbot, 3rd Earl of Shrewsbury, 3rd Earl of Waterford, 9th Baron Talbot, KG (12 December 1448 – 28 June 1473) was an English nobleman. He also held the subsidiary titles of 12th Baron Strange of Blackmere and 8th Baron Furnival. Although a soldier and an administrator, he was described by William of Worcester as 'more devoted to literature and the muses, than to politics and arms'.
Document 6: Humphrey Stafford, 1st Duke of Buckingham: Humphrey Stafford, 1st Duke of Buckingham, 6th Earl of Stafford, {'1': ", '2': ", '3': ", '4': "} (15 August 1402 – 10 July 1460) was an English nobleman and a military commander in both the Hundred Years' War and in the Wars of the Roses. A great-grandson of King Edward III on his mother's side, he inherited his father's earldom of Stafford at an early age. Through his marriage to a daughter of Ralph, Earl of Westmorland, Humphrey was not only related to the powerful Neville family, but many of the leading aristocratic houses of the time. Like his father, he joined the English campaign in France and fought for King Henry V; on the King's death he became a leading councillor for the new King, the six-month old Henry VI. He acted in a peace-making role in the partisan politics of the 1430s, when Humphrey, Duke of Gloucester vied with Cardinal Beaufort for political supremacy, and he was also involved in the arrest of the duke in 1445.
Document 7: Thomas Cromwell: Thomas Cromwell, 1st Earl of Essex ( or ; 1485 – 28 July 1540) was an English lawyer and statesman who served as chief minister to King Henry VIII of England from 1532 to 1540.
Document 8: Edward Stanley, 3rd Earl of Derby: Edward Stanley, 3rd Earl of Derby KG (c. 10 May 1509 – 24 October 1572) was an English nobleman and politician.
Document 9: Edward Stourton, 10th Baron Stourton: Edward Stourton, 10th Baron Stourton (c. 1555-7 May 1633) was a younger son of Charles Stourton, 8th Baron Stourton and Lady Anne Stanley, daughter of Edward Stanley, 3rd Earl of Derby. His father was executed for murder in 1557. He succeeded his brother John in 1588.
Document 10: Baron Stanley of Alderley: Baron Stanley of Alderley, in the County of Chester, is a title in the Peerage of the United Kingdom. It was created in 1839 for the politician and landowner Sir John Stanley, 7th Baronet. Upon his death in 1850, he was succeeded as 2nd Baron Stanley of Alderley and 8th Baronet of Alderley Hall by his son Edward, who was a prominent Liberal politician and notably served as President of the Board of Trade, Postmaster General and had in 1848 been created Baron Eddisbury, of Winnington in the County Palatine of Chester, in his own right. His wife Henrietta was a prominent campaigner for women's education. After his death, the Stanley of Alderley and Eddisbury baronies remained united; most holders have since chosen to be known as "Lord Stanley of Alderley". The 3rd Baron Stanley of Alderley had a career in the Diplomatic Service; as he was childless he was succeeded by his younger brother, the 4th Baron. He was Liberal Member of Parliament for Oldham. In 1909, the 4th Baron Stanley of Alderley acquired a further title when he succeeded his first cousin once removed, the Earl of Sheffield, according to a special remainder and thus inherited the title of 4th Baron Sheffield. After his death the titles passed to his son, the 5th Baron Stanley of Alderley. He was Liberal Member of Parliament for Eddisbury and also served as Governor of Victoria. His eldest son, the 6th Baron Stanley of Alderley, sold the family seat of Alderley Hall in 1938. He was married four times, the second time to Sylvia Ashley. On his death the titles passed to his younger brother, who preferred to be known as Lord Sheffield. He only held the titles for three months. s of 2013 the titles are held by the latter's cousin, the 9th Baron Stanley of Alderley, who succeeded his father in that year. He is the grandson of the Hon. Oliver Hugh Stanley, youngest son of the 4th Baron.
Document 11: Edward Stafford, 4th Baron Stafford: Edward Stafford, 4th Baron Stafford (1572 – 16 September 1625) was the son of Edward Stafford, 3rd Baron Stafford and Mary Stanley, daughter of Edward Stanley, 3rd Earl of Derby and Dorothy Howard. He became 4th Baron Stafford on the death of his father in 1603
Document 12: Henry Nevill, 6th Baron Bergavenny: Henry Nevill, 6th and "de jure" 4th Baron Abergavenny KB (between 1527 and 153510 February 1587) was an English peer. He was the son of Sir George Nevill, 5th Baron Bergavenny, and Mary Stafford (daughter of Edward Stafford, 3rd Duke of Buckingham). He succeeded to the barony upon the death of his father, George Nevill, 5th Baron Bergavenny.
Document 13: Stanley Baldwin: Stanley Baldwin, 1st Earl Baldwin of Bewdley, (3 August 186714 December 1947) was a British Conservative politician who dominated the government in his country between the two world wars. Three times Prime Minister, he is the only premier to have served under three monarchs (George V, Edward VIII and George VI).
Document 14: Henry Stafford, 1st Baron Stafford: Henry Stafford, 1st Baron Stafford (18 September 1501 – 30 April 1563) was born in Penshurst, Kent, eldest son of Edward Stafford, 3rd Duke of Buckingham and Eleanor Percy, Duchess of Buckingham. Eleanor (or Alianore) was the daughter of Henry Percy, 4th Earl of Northumberland and Maud Herbert, Countess of Northumberland. After his father's execution he managed to regain some of his family's position and he was created Baron Stafford in 1547.
Document 15: Robert Dudley, 1st Earl of Leicester: Robert Dudley, 1st Earl of Leicester (24 June 1532 or 1533 – 4 September 1588) was an English nobleman and the favourite and close friend of Elizabeth I's, from her first year on the throne until his death. He was a suitor for the queen's hand for many years.
ground_truth: Mary Stanley