Question: What nicknames were applied to Margaret de Audley, 2nd Baroness Audley royal great grandfather ?
Context: James Audley, 2nd Baron Audley (8 January 1312/13 – 1 April 1386) of Heighley Castle, Staffordshire, was an English peer.  He was the son and heir of Nicholas Audley, 1st Baron Audley (1289–1316) by his wife Joan FitzMartin (died Feb. 1320 / 1 Aug. 1322) , who was the daughter of William FitzMartin (died 1324), feudal baron of Barnstaple, Devon, and was posthumously the eventual sole heiress of her brother William FitzMartin (died 1326) to the feudal barony of Barnstaple. Sir John de Sutton III (1339 – c.1370) was the 2nd Baron Sutton of Dudley and heir of Dudley Castle.  He was the son of Sir John de Sutton II, the first Lord of Dudley, and Isabella de Cherleton.  John III married twice, with the first on 25 December 1357 to Katherine de Stafford (1340/8 – December 1361), daughter of Ralph de Stafford, 1st Earl of Stafford and Margaret de Audley, 2nd Baroness Audley.  After 1361, he married secondly to Joan, daughter of Sir John de Clinton of Coleshill. Edward I (17/18 June 1239 – 7 July 1307), also known as Edward Longshanks and the Hammer of the Scots (Latin: "Malleus Scotorum" ), was King of England from 1272 to 1307.  He spent much of his reign reforming royal administration and common law.  Through an extensive legal inquiry, Edward investigated the tenure of various feudal liberties, while the law was reformed through a series of statutes regulating criminal and property law.  Increasingly, however, Edward's attention was drawn towards military affairs. Joan de Geneville, 2nd Baroness Geneville, Countess of March, Baroness Mortimer (2 February 1286 – 19 October 1356), also known as Jeanne de Joinville, was the daughter of Sir Piers de Geneville and Joan of Lusignan.  She inherited the estates of her grandparents, Geoffrey de Geneville, 1st Baron Geneville, and Maud de Lacy, Baroness Geneville.  She was one of the wealthiest heiresses in the Welsh Marches and County Meath, Ireland.  She was the wife of Roger Mortimer, 1st Earl of March, the de facto ruler of England from 1327 to 1330.  She succeeded as suo jure 2nd Baroness Geneville on 21 October 1314 upon the death of her grandfather, Geoffrey de Geneville. Mary Thicknesse-Touchet, 22nd Baroness Audley (August 13, 1858 – May 27, 1942). Margaret de Audley, "suo jure" 2nd Baroness Audley and Countess of Stafford (1318 – between 1347 and 1351) was an English noblewoman.  She was the only daughter of Hugh de Audley, 1st Earl of Gloucester by his wife Lady Margaret de Clare.  Her mother was the daughter of Joan of Acre, Princess of England; thus making Margaret a great-granddaughter of King Edward I by his first consort, Eleanor of Castile.  As the only daughter and heiress of her father, she succeeded to the title of 2nd Baroness Audley [E., 1317] on 10 November 1347. Nicholas Audley, 3rd Baron Audley (ca. 1328 – 1391) was born in the Heighley Castle, Staffordshire, England to James Audley, 2nd Baron Audley, his only surviving son. Hugh de Audley, 1st Baron Audley and 1st Earl of Gloucester (3rd Creation) (c. 1291 – 10 November 1347) was the second son of Sir Hugh de Audley, Lord Audley by Iseult de Mortimer and Great great grandson of King Henry II.  He held many offices including Knight of Stratton in Stratton Audley, Oxfordshire, of Gratton, Staffordshire, the King's bachelor, Sheriff of Rutland, and was the English Ambassador to France in 1341. Margaret Howard (née Audley), Duchess of Norfolk (1540 – 9 January 1564) was the sole surviving child of Thomas Audley, 1st Baron Audley of Walden and Lady Elizabeth Grey, daughter of Thomas Grey, 2nd Marquess of Dorset and Margaret Wotton. Robert de Ferrers, 4th Baron Ferrers of Chartley ( 1358 – 1413) was the son of John de Ferrers, 3rd Baron Ferrers of Chartley and Elizabeth de Stafford, a daughter of Ralph de Stafford, 1st Earl of Stafford and Margaret de Audley.
Answer: Edward Longshanks and the Hammer of the Scots