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 his nephews would help secure his position or make him more acceptable to his subjects." An initial uprising in September 1483, aimed at deposing Richard and restoring Edward V to the throne, was not stopped by rumours of Edward's murder. Instead, the rebels rallied around Henry Tudor as a potential alternative candidate, who was, as Horrox notes, "an inconceivable choice if Edward V and his brother were thought to be still available." Anthony Cheetham, who considered Richard likely did have the princes murdered, commented that it was "a colossal blunder. Nothing else could have prompted the deflated Woodvilles to hitch