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 More's account was actually written by Archbishop Morton and that Tyrrell was induced to do the deed by Henry VII between June 16 and July 16, 1486, the dates of two general pardons that he received from the king. Richard's guilt was widely accepted by contemporaries. George Cely, Dominic Mancini, John Rous, Fabyan’s Chronicle, the Crowland Chronicler and the London Chronicle all noted the disappearance of the Princes, and all bar Mancini (who noted that he had no knowledge of what had happened) repeated rumours naming Richard as the murderer. Guillaume de Rochefort, Chancellor of France, named Richard as the