 The Beaufort theory has more recently been supported by Philippa Gregory in her BBC documentary series "The Real White Queen and her Rivals", but is not supported by any evidence other than a speculative one of possible motive.Historian David Baldwin suggests that Henry VII's reticence on the subject may have been due to the fact that at least one of the princes was still alive; he considers that the likelier candidate for survival would be Richard and that Edward may have died of a malady.Baldwin argues that it is "impossible" that no one knew what happened to the Princes after they entered the Tower; he believes Richard III and Henry VII, leading courtiers and their mother would all have known the boys' whereabouts and welfare.