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 Josephine Tey's "The Daughter of Time" and four novels in Philippa Gregory's Cousins' War series, as well as aspects of George R. R. Martin's "Game of Thrones", wherein boy heirs are apparently murdered. The continued publishing of these novels and stories have contributed to the continued fascination with this mystery. The brothers also appear in the Victorian-era themed manga series, "Black Butler", better known as "Kuroshitsuji", by Yana Toboso. Princes in the Tower "The Princes in the Tower" is an expression frequently used to refer to Edward V, King of England and Richard of Shrewsbury, Duke of York. The two