Question: Who was the mother of Margaret Tudor and daughter of Edward IV?
Context: The Historie of the Arrivall of Edward IV.  in England and the Finall Recouerye of His Kingdomes from Henry VI.  A.D. M.CCCC.LXXI is a chronicle from the period of the Wars of the Roses.  As the title implies, the main focus of the work is Edward IV's arrival in England in 1471 to reclaim his crown.  On 2 October 1470, King Edward had fled to Flanders in the face of a rebellion by Richard Neville, Earl of Warwick.  Warwick set upas a puppet kingHenry VI, whom he had himself previously helped depose.  On the continent Edward received support from Charles the Bold, Duke of Burgundy, and on 14 March 1471 he landed at Ravenspurn in Yorkshire, and started making his way south.  On 14 April Edward defeated Warwick at the Battle of Barnet.  Warwick was killed and Edward's reign was secured. Henry Stewart, 1st Lord Methven (c. 1495 – 1552) was Master of the Scottish Artillery and last husband of Margaret Tudor, eldest daughter of Henry VII of England and Elizabeth of York. Arthur Tudor (20 September 1486 – 2 April 1502) was Prince of Wales, Earl of Chester and Duke of Cornwall.  As the eldest son and heir apparent of Henry VII of England, Arthur was viewed by contemporaries as the great hope of the newly established House of Tudor.  His mother, Elizabeth of York, was the daughter of Edward IV, and his birth cemented the union between the House of Tudor and the House of York. Alice Holland, Countess of Kent (c. 1350 – 17 March 1416), LG, formerly Lady Alice FitzAlan, was an English noblewoman, a daughter of the 10th Earl of Arundel, and the wife of the 2nd Earl of Kent, the half-brother of King Richard II.  As the maternal grandmother of Anne Mortimer, she was an ancestor of King Edward IV and King Richard III, as well as King Henry VII and the Tudor dynasty through her daughter Margaret Holland.  She was also the maternal grandmother of Joan Beaufort, Queen of Scotland. Elizabeth of York (11 February 1466 – 11 February 1503) was queen consort of England from 1486 until her death.  As the wife of Henry VII, she was the first Tudor queen.  She was the daughter of Edward IV and niece of Richard III, and she married the king following Henry's victory at the Battle of Bosworth which started the last phase of the Wars of the Roses.  She was the mother of King Henry VIII.  Therefore, she was the daughter, sister, niece, wife, mother, and grandmother of successive kings and queens of England. Margaret Tudor (28 November 1489 – 18 October 1541) was Queen of Scots from 1503 until 1513 by marriage to James IV of Scotland and then, after her husband died fighting the English, she became regent for their son James V of Scotland.  She was born at Westminster Palace as the oldest daughter of Henry VII of England and Elizabeth of York, and granddaughter of Margaret Beaufort, Edward IV of England and Queen Elizabeth Woodville.  Margaret Tudor had several pregnancies, but most of her children died young or were stillborn.  As queen dowager she married Archibald Douglas, 6th Earl of Angus.  Through her first and second marriages, respectively, Margaret was the grandmother of both Mary, Queen of Scots, and Mary's second husband, Lord Darnley.  Margaret's marriage to James IV foreshadowed the Union of the Crowns – their great-grandson, James VI and I, was the first to be monarch of both Scotland and England. Sir Hugh Conway was created Lord Treasurer of Ireland in 1494 by King Henry VII of England.  He replaced Sir James Ormonde as Lord Treasurer of Ireland.  In 1504 he was appointed Treasurer of Calais by Henry VII ( Cal.  Pat.  Rolls Henry VIII, vol.  ii, 365).  Hugh Conway was an early supporter of Henry Tudor, Earl of Richmond (later Henry VII), was sent by Margaret Beaufort, Henry's mother to Henry, in exile in France, in 1483 with a large sum of money and encouragement to invade England through Wales and seize the crown from Richard III.  Henry did so in 1485 and Richard was killed at the Battle of Bosworth, where Hugh was present.  Hugh was appointed Keeper of the Great Wardrobe by King Henry VII on 21 September 1485, was knighted in January 1486 at the coronation of Queen Elizabeth of York, daughter of King Edward IV, and married Elizabeth Courtenay, daughter of Sir Thomas Courtenay, Earl of Devon, in 1490.  Sir Hugh Conway was appointed Sheriff of Buckinghamshire and Bedfordshire by Henry VII in 1500.  Sir Hugh was a son of John ‘ Aer Conwy Hen ’ of Bodrhyddan Hall and Constable of Rhuddlan Castle, Flintshire, Wales, by his first marriage, and descended from the ancient line of Conway (Conwy = Wales) and de Crevecouer (The Journal Of The Flintshire Historical Society (Appendix D: Conwy Pedigree (British Museum Harleian MS 1971))).  Sir Hugh's younger half-brother was Edward Conway who married the heiress of Arrow and Alcester, Warwickshire, and was great-grandfather to Edward Conway, 1st Viscount Conway of Ragley Hall, ancestor of the present family of Seymour Conways, Marquis of Hertford. Catherine or Katherine of York (14 August 1479 – 15 November 1527) was the ninth child and sixth daughter of King Edward IV by his wife Elizabeth Woodville.  From birth to death, she was daughter to Edward IV, sister to Edward V, niece to Richard III, sister-in-law to Henry VII and aunt to Henry VIII. The Hours of James IV of Scotland, Prayer book of James IV and Queen Margaret (or variants) is an illuminated book of hours, produced in 1503 or later, probably in Ghent.  It marks a highpoint of the late 15th century Ghent-Bruges school of illumination and is now in the Austrian National Library in Vienna (Österreichische Nationalbibliothek, Codex Vindobonensis 1897).  It is thought to have been a wedding gift from James IV of Scotland or another Scottish nobleman to James's wife Margaret Tudor on the occasion of their marriage, perhaps finishing a book already started for another purpose.  A number of artists worked on the extensive programme of decoration, so that "the manuscript in its entirety presents a rather odd picture of heterogeneity".  The best known miniature, a full-page portrait of James at prayer before an altar with an altarpiece of Christ and an altar frontal with James's coat-of-arms, gave his name to the Master of James IV of Scotland, who is now generally identified as Gerard Horenbout, court painter to Margaret of Austria; he did only one other miniature in the book.  The equivalent image of Margaret is the only image by another artist, using a rather generic face for the queen's portrait, and in a similar style to that of the Master of the First Prayer Book of Maximilian.  Other artists worked on the other miniatures, which include an unusual series of unpopulated landscapes in the calendar - perhaps the Flemish artists were not sure how Scots should be dressed. Elizabeth Woodville (also spelled Wydville, Wydeville, or Widvile; c. 1437 – 8 June 1492) was Queen consort of England as the spouse of King Edward IV from 1464 until his death in 1483.  At the time of her birth, her family was mid-ranked in the English aristocracy.  Her first marriage was to a minor supporter of the House of Lancaster, Sir John Grey of Groby; he died at the Second Battle of St Albans, leaving Elizabeth a widowed mother of two sons.  Her second marriage, to Edward IV, was a cause célèbre of the day, thanks to Elizabeth's great beauty and lack of great estates.  Edward was only the second king of England since the Norman Conquest to have married one of his subjects, and Elizabeth was the first such consort to be crowned queen.  Her marriage greatly enriched her siblings and children, but their advancement incurred the hostility of Richard Neville, Earl of Warwick, 'The Kingmaker', and his various alliances with the most senior figures in the increasingly divided royal family.
Answer: Elizabeth of York