Princes in the Tower becoming king, Henry married the princes' eldest sister, Elizabeth of York, to reinforce his claim to the throne. Not wanting the legitimacy of his wife or her claim as heiress of Edward IV called into question, prior to the marriage he had repealed the "Titulus Regius" which had previously declared the princes (and Elizabeth) illegitimate. Markham suggests the princes were executed under Henry's orders between 16 June and 16 July 1486, claiming that it was only after this date that orders went out to circulate the story that Richard had killed the princes, and that the princes' mother, Elizabeth Woodville,
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