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 Stafford, Countess of Sussex Sir Walter Herbert (died 16 September 1507), an illegitimate son of William Herbert, 1st Earl of Pembroke, and secondly, George Hastings, 1st Earl of Huntingdon. After the execution of the 2nd Duke of Buckingham, his widow, Katherine Woodville, married Jasper Tudor, second son of Owen Tudor and King Henry V's widow, Catherine of Valois. After Jasper Tudor's death on 21 December 1495, Katherine Woodville married Sir Richard Wingfield (died 22 July 1525). Katherine Woodville died 18 May 1497. After her death, Sir Richard Wingfield married Bridget Wiltshire, daughter and heiress of Sir John Wiltshire of Stone, Kent. Elizabeth Stafford's only