Thomas Vaughan (died 1483) to the Duke of Burgundy in 1468. In 1475, on the same day that Edward's eldest son, the future Edward V, was invested as Prince of Wales, Vaughan was knighted, having acted for some years as Chamberlain to the young prince. In 1478, he was elected to parliament as knight of the shire for Cornwall. After Edward IV died in 1483, Vaughan was accompanying Edward V from Ludlow to London when the party was intercepted by the future King Richard III, then Duke of Gloucester. Richard had Vaughan arrested and executed along with Anthony Woodville, 2nd Earl Rivers and tutor
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