John Sackville MP (before 17 March 1484 – 26 September 1557) was a member of parliament for East Grinstead, and a local administrator in Essex, Sussex and Surrey.
[1] John Sackville, born before 17 March 1484, was the son of Richard Sackville (d. 28 July 1524),[2] esquire, and Isabel Digges, the daughter of John Digges, esquire, of Barham, Kent, by Joan Clifton, the daughter and co-heiress of Sir Gervase Clifton.
[3] He was the grandson of Humphrey Sackville (d. 24 January 1489) and Katherine Browne, daughter of Sir Thomas Browne (beheaded 20 July 1460), Treasurer of the Household to King Henry VI, by Eleanor Arundel,[4] and the great-grandson of Edward Sackville (d. 1459) and his wife, Margaret Wakehurst.
Sackville is said to have derived little benefit from his first marriage into the Boleyn family, and to have done 'little on his own account to augment his inheritance'.
[10] Sackville married first, by 1507, Margaret Boleyn, the daughter of Sir William Boleyn of Blickling and Margaret Ormond (otherwise Butler) (d. before 20 March 1540), daughter and co-heiress of Thomas Butler, 7th Earl of Ormond (died 3 August 1515), by his first wife, Anne Hankford.