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 the love and favour of the communal tie (which outwardlie glosed, and openly dissembled with him) ... gave prodigally so many and so great rewards, that now both he lacked, and scarce with honesty how to borrow." Richard also failed to open any investigation into the matter, which would have been in his interest if he was not responsible for the deaths of his nephews. Richard was away from court on a progression through the Yorkist heartlands at the time the princes disappeared; if they died at this time, he would have been unable to murder them in person. They