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 or heavily influenced by John Morton, Archbishop of Canterbury, in order to incriminate Richard III. Robert Fabyan's "Chronicles of London", compiled around 30 years after the princes' disappearance, names Richard as murderer. Thomas More (a Tudor loyalist who had grown up in the household of John Morton, an avowed foe of Richard III), wrote The "History of King Richard III", c.1513. This identified Sir James Tyrrell as the murderer, acting on Richard's orders. Tyrrell was the loyal servant of Richard III who is said to have confessed to the murder of the princes before his execution for treason in 1502.