Elizabeth Stafford, Countess of Sussex paternal aunt was Margaret Dayrell who was wife to James Tuchet, 7th Baron Audley. Her maternal uncles included (among others) Anthony Woodville, 2nd Earl Rivers, Richard Woodville, 3rd Earl Rivers and Lionel Woodville, Bishop of Salisbury. Her aunts included Elizabeth Woodville and Mary Woodville, married respectively to Edward IV of England and William Herbert, 2nd Earl of Pembroke. Her first cousins included (among others) John Tuchet, 8th Baron Audley, Thomas Grey, 1st Marquess of Dorset, Richard Grey, Elizabeth of York, Mary of York, Cecily of York, Edward V of England, Margaret of York, Richard of Shrewsbury, 1st Duke of York,
Elizabeth Woodville offered the throne and became King Richard III. Edward V, who was no longer king, and his brother Richard, Duke of York, remained in the Tower of London. There are no recorded sightings of them after the summer of 1483. Now referred to as Dame Elizabeth Grey, she and the Duke of Buckingham (a former close ally of Richard III and now probably seeking the throne for himself) now allied themselves with Lady Margaret Stanley (née Beaufort) and espoused the cause of Margaret's son Henry Tudor, a great-great-great-grandson of King Edward III, the closest male heir of the Lancastrian claim