Princes in the Tower "the murther of his nephews towards the world", indicating that the boys did indeed meet their end during Richard's days. It is also unlikely that the princes would have been kept alive in secret by Richard for 2 years after their last sighting while rumours of his responsibility for their murder circulated. Some writers have also accused John Howard, 1st Duke of Norfolk; Margaret Beaufort, Henry VII's mother; and Jane Shore (Edward IV's mistress). Pollard writes of these theories: "None deserve serious consideration. The problem with all these accusations is that they beg the question of access to the Tower
Princes in the Tower 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. Baldwin argues that had this been the case, Henry VII would have had the choice of keeping quiet about the survival of Richard, or having him executed, and concluded, "He [Henry] would have been happy to let people "think" the boys had been murdered, but not