question: Where did Henry Beaufort, 2Nd Earl Of Somerset's mother die?
context: [["Margaret Holland, Duchess of Clarence", ["Margaret Holland (1385 \u2013 30 December 1439) was a medieval English noblewoman.", "She was a daughter of Thomas Holland, 2nd Earl of Kent, who was the son of Joan", "\"the Fair Maid of Kent\"", "(granddaughter of Edward", "I of England, wife of Edward", "the Black Prince and mother of Richard II of England).", "Margaret's mother was Alice FitzAlan, daughter of Richard FitzAlan, 10th Earl of Arundel and Eleanor of Lancaster.", "Margaret married John Beaufort, 1st Earl of Somerset, son of John of Gaunt and his mistress Katherine Swynford.", "They had six children:\nIn 1399, she was invested as a Lady Companion, Order of the Garter (L.G.).", "After Beaufort died in 1410 (in the Tower of London), she married his nephew Thomas of Lancaster, Duke of Clarence (1387\u20131421), the son of King Henry IV.", "They had no children.", "She died on 30 December 1439 at St. Saviour's Abbey, Bermondsey, in London, England.", "Margaret and both her husbands are buried together in a carved alabaster tomb in Canterbury Cathedral that shows her lying between the two of them."]], ["Henry Beaufort, 2nd Earl of Somerset", ["Henry Beaufort, 2nd Earl of Somerset (\"probably\" 26 November 1401 \u2013 25 November 1418) was the eldest son of John Beaufort, 1st Earl of Somerset, and the grandson of John of Gaunt,", "1st Duke of Lancaster and Katherine Swynford.", "Henry succeeded his father as Earl of Somerset on 16 March 1410.", "During his minority, his mother, Margaret Beaufort, Countess of Somerset held his lands for him until he reached the age of 15.", "When Henry was seventeen, he was placed under the command of Thomas Beaufort, Duke of Exeter, his uncle, at the Siege of Rouen during the Hundred Years' War where he, as well as a number of other nobles, met his demise, although the exact reasons of his death are unknown.", "He never married and was succeeded by his younger brother, John Beaufort, 1st Duke of Somerset."]], ["Charles Somerset, 1st Earl of Worcester", ["Charles Somerset, 1st Earl of Worcester,( c. 146015 March 1526) was an English nobleman and politician.", "He was the legitimised bastard son of Henry Beaufort, 3rd Duke of Somerset by his mistress Joan Hill."]], ["William Feilding, 3rd Earl of Denbigh", ["William Feilding, 3rd Earl of Denbigh, 2nd Earl of Desmond( 29 December 1640 \u2013 23 August 1685) was an aristocrat in the Peerage of England.", "He was the son of George Feilding, 1st Earl of Desmond, and his wife, the former Bridget Stanhope, daughter of Sir Michael Stanhope.", "Feilding inherited the title of Earl of Denbigh from his paternal uncle Basil Feilding, 2nd Earl of Denbigh, who died without heirs in 1675.", "He married, firstly, Mary King( died 1669), daughter of Sir Robert King and Frances Folliott.", "Secondly, he married Lady Mary Carey, daughter of Henry Carey, 2nd Earl of Monmouth.", "He died on 23 August 1685 at age 44.", "By his first wife, Mary King, Feilding had the following children:", "There were no children from the earl's second marriage."]], ["John Beaufort, Marquess of Dorset", ["John Beaufort, Marquess of Dorset, Earl of Dorset( b. 1441 \u2013 d.", "4 May 1471) was a scion of the Beaufort family, who fought for the Lancastrians in the Wars of the Roses.", "He was the third son of Edmund Beaufort, 2nd Duke of Somerset and his wife, Lady Eleanor Beauchamp, daughter of Richard de Beauchamp, Earl of Warwick.", "When his eldest brother, Henry Beaufort, 3rd Duke of Somerset, was killed fighting for Lancaster in 1464 at the Battle of Hexham, the next brother, Edmund, succeeded to the Dukedom, and John became\" Marquess of Dorset\" and\" Earl of Dorset\", courtesy titles granted to the Beaufort heir- apparent or heir- presumptive.", "These titles were not recognized by King Edward IV, of the House of York.", "John had been in exile since 1461, first in Burgundy and then France.", "When Henry VI of Lancaster reclaimed the throne in October 1470, John returned with his brother Edmund.", "But a few months later, Henry was driven from the throne again, and the Lancastrians were on the run.", "John was killed in the Battle of Tewkesbury on 4 May 1471, while fighting beside Edmund, who was captured and beheaded two days later.", "John left behind no issue and was never married.", "With the death of John and Edmund, the legitimate male line of the Beauforts ended."]], ["Edmund Beaufort, 2nd Duke of Somerset", ["Edmund Beaufort, 2nd Duke of Somerset, KG( 22 May 1455), was an English nobleman and an important figure in the Wars of the Roses and in the Hundred Years' War.", "He also succeeded in the title of 4th Earl of Somerset and was created 1st Earl of Dorset and 1st Marquess of Dorset( previously held by his father and later forfeited), and Count of Mortain.", "He was known for his deadly rivalry with Richard of York, 3rd Duke of York."]], ["Henry Beaufort, 3rd Duke of Somerset", ["Henry Beaufort, 3rd Duke of Somerset( 26 January 143615 May 1464) was an important Lancastrian military commander during the English Wars of the Roses.", "He is sometimes numbered the 2nd Duke of Somerset, because the title was re-created for his father after his uncle died.", "He also held the subsidiary titles of 5th Earl of Somerset, 2nd Marquess of Dorset and 2nd Earl of Dorset."]], ["John Manners, 4th Earl of Rutland", ["John Manners, 4th Earl of Rutland( c. 1559 \u2013 24 February 1588) was the son of Henry Manners, 2nd Earl of Rutland, and Lady Margaret Neville, daughter of Ralph Neville, 4th Earl of Westmorland."]], ["Eleanor Beaufort", ["Lady Eleanor Beaufort( 1431 \u2013 16 August 1501) was the daughter of Edmund Beaufort, 2nd Duke of Somerset( 1406- 1455), KG, and was a sister of the 3rd and 4th Dukes of Somerset."]], ["Thomas Bruce, 2nd Earl of Ailesbury", ["Thomas Bruce, 2nd Earl of Ailesbury( later styled Aylesbury) and 3rd Earl of Elgin( 1656 \u2013 16 December 1741) was an English politician and memoirist.", "He was the son of Robert Bruce, 2nd Earl of Elgin, and Lady Diana Grey.", "His maternal grandparents were Henry Grey, 1st Earl of Stamford, and Lady Anne Cecil, daughter of William Cecil, 2nd Earl of Exeter.", "His\" Memoirs\", which were not published until long after his death, are a valuable source for English history in the last quarter of the seventeenth century."]]]
supporting_facts: [["Henry Beaufort, 2nd Earl of Somerset", 3], ["Margaret Holland, Duchess of Clarence", 9]]
evidences: [["Henry Beaufort, 2nd Earl of Somerset", "mother", "Margaret Beaufort, Countess of Somerset"], ["Margaret Holland, Duchess of Clarence", "place of death", "London"]]
answer: London