Princes in the Tower household which stated: "the children should be together at one breakfast". James Gairdner, however, argues that it is unclear to whom the phrase "the children" alludes, and that it may not have been a reference to the princes. It may refer to Edward, Earl of Warwick (son of the Duke of Clarence) and Edward IV's two youngest daughters (Catherine and Bridget), all of whom were living under Richard's care at Sheriff Hutton. Other than their disappearance, there is no direct evidence that the princes were murdered, and "no reliable, well-informed, independent or impartial sources" for the associated events. Nevertheless, following
Princes in the Tower Hicks speculated that these men may have been "appalled by the character of the regime...shocked by Richard's crimes." Their defection severely weakened Richard, who had to impose his supporters among the northern lords as officeholders in the southern counties to maintain order, in itself a very unpopular act that further damaged his reputation. In Pollard's words, "the belief that he had murdered his nephews seriously handicapped Richard's efforts to secure himself on the throne he had usurped." The mystery of the Princes in the Tower has had a great impact on literature and television, spawning several award-winning novels such as