Elizabeth Stafford married, shortly after 23 July 1505,
Robert Radcliffe, later the 1st Earl of Sussex, by whom she had three sons: •
Henry Radcliffe, 2nd Earl of Sussex (1507–1542), father of
Thomas Radcliffe, 3rd Earl of Sussex, a leading figure at the court of
Queen Elizabeth. • Sir
Humphrey Radcliffe (c. 1508/09–13 August 1566) of
Elstow,
Bedfordshire, who married Isabel Harvey, daughter and heir of Edmund Harvey of Elstow and Margaret Wentworth, daughter of Sir Giles Wentworth, Knight, by whom he had two sons,
Edward Radcliffe, 6th Earl of Sussex, and Thomas Radcliffe, and at least three daughters. • George Radcliffe, who married Catherine Marney, the daughter of John Marney,
2nd Baron Marney. After Elizabeth Stafford's death,
Robert Radcliffe, 1st Earl of Sussex, married secondly, by 1 September 1532, Margaret Stanley, the only daughter of
Thomas Stanley, 2nd Earl of Derby, and Anne Hastings, the daughter of
Edward Hastings, 2nd Baron Hastings, by whom he had two daughters, Jane, who married
Anthony Browne, 1st Viscount Montague, and Anne, who married
Thomas Wharton, 2nd Baron Wharton.
Robert Radcliffe, 1st Earl of Sussex, married thirdly, on 14 January 1537,
Mary Arundell (died 20 October 1557), the only child of
Sir John Arundell (1474–1545) of
Lanherne,
Cornwall, and his second wife, Katherine Grenvile, by whom he had two sons, a first-born son who died in infancy and whose name is unknown, and a younger son,
Sir John Radcliffe (1539 – 9 November 1568).
Robert Radcliffe, 1st Earl of Sussex, died 27 November 1542. His widow, Mary, subsequently married, in 1545, as his second wife,
Henry FitzAlan, Earl of Arundel (died 24 February 1580). == Ancestry ==