The King is taken ill. Foreseeing his death, he asks Elizabeth to send for his brother Richard, Duke of Gloucester, whom he appoints Lord Protector. Elizabeth, mistrustful of Gloucester, asks her brother Anthony to arrange for her son, now King Edward V, to be brought to London by his half-brother Richard Grey; they are intercepted by Gloucester and the young king is taken to the Tower of London. Anthony pleads with Elizabeth to cooperate with Gloucester, but Margaret Beaufort and her husband Thomas Stanley sow seeds of mistrust in both camps, recognizing the potential advantage for Margaret's son. Meanwhile, the Duke of Buckingham, himself a distant claimant to the throne, works for his own ends. Elizabeth takes her children into sanctuary and tells Anthony to ensure that the fleet is ready to rescue them; ordered to send her second son to join his brother in the Tower, she sends a boy of common birth as a substitute. Gloucester, at first protective of his nephews, executes Anthony for treason when he hears of the Woodvilles' intentions. He is soon persuaded by his wife Anne to have his nephews declared illegitimate, on the grounds of a previous promise of marriage made by Edward to another woman. He and Anne are then crowned instead of his nephew.