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the legitimacy of his wife or her claim as heiress of Edward IV called into question, prior to the marriage he had repealed the "Titulus Regius" which had previously declared the princes (and Elizabeth) illegitimate.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,
Tower of the Sun transform the tower into a giant monster robot. As part of ad campaign for the model, the tower is shown in a short animated sequence in which would transform and briefly fight a monster in same style as Tokusatsu programs. The Tower of the Sun, as well as the Expo of 1970, plays a central role in Naoki Urasawa's manga: "20th Century Boys". In this series the tower becomes one of the main symbols of the "cult of the friend," an evil association that wants to conquer the world. It also appears in the movie I Wish (film) (Kiseki, 2011,