 Her grandparents on her father's side were Henry Stafford, 2nd Duke of Buckingham, and Lady Katherine Woodville (sister of Elizabeth Woodville), and on her mother's, Henry Percy, 4th Earl of Northumberland, and Lady Maud Herbert.Her paternal grandfather, the 2nd Duke, was executed for treason in 1483 by King Richard III, and in 1521 her own father suffered the same fate when he was beheaded on Tower Hill for treason against King Henry VIII.Elizabeth lived at home until at least 1508.