On 2 May 1502, he was convicted of treason for involvement in the alleged conspiracy of his step-daughter Margaret Scrope's husband, Edmund de la Pole, 3rd Duke of Suffolk, and was beheaded on Tower Hill on 6 May 1502, together with Sir James Tyrrell.
[4] Her first husband, Edward Jerningham, died in 1515, and by 1532 she had married Sir William Kingston, who had been appointed Constable of the Tower of London on 28 May 1524, an office which placed him in charge of state prisoners.
[23] After the death of Anne Boleyn, the King married Jane Seymour, and at the christening of their infant son Prince Edward on 15 October 1537, Lady Kingston carried Mary Tudor's train.
[24] From March 1538 until April 1539, Lady Kingston was in charge of a joint household for Henry VIII's daughters, Mary and Elizabeth.
In her will she requested burial at Painswick with her second husband, Sir William Kingston, but was buried at Low Leyton, Essex, on 4 September 1548.
[29] Among many other bequests, she left a goblet of silver and gilt and a ruby ring to her step-daughter, Lady Anne Grey, and a bed of crimson velvet to her granddaughter, Mary Jerningham.
She gave her sister Jane Brews a gold hoop jewel engraved with the five wounds of Christ and a book, and her to her nephew John a brooch with an image of Mary Magdalen.
[30] Strype records the following verses commemorating her on a brass plate dating from 1557 on the south wall of the old chancel of the Church of St Mary at Low Leyton:[31] If you will the truth have, Here lieth in this grave, Directly under this stone, Good Lady Mary Kingston, Who departed this life, the truth to say, In the month of August, the twenty-fifth day, And as I do well remember, Was buried honourably the fourth day of September The year of Our Lord reckoned truly MVc forty and eight verily, Whose yearly obit and anniversary Is determined to be kept surely At the cost of her son, Sir Henry Jerningham, truly, Who was at this making Of the Queen’s Guard chief captain.
[33] Jerningham's first wife was Margaret Bedingfield (d. 24 March 1504),[34] by whom he had six sons[35] and two daughters, Mary Scrope's stepchildren: By Edward Jerningham, Mary Scrope is said to have had four sons and a daughter:[43][4] She married secondly, by 1532, as his third wife, Sir William Kingston (c. 1476 – 14 September 1540), Constable of the Tower of London, by whom she had no issue.