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the legitimacy of his wife or her claim as heiress of Edward IV called into question, prior to the marriage he had repealed the "Titulus Regius" which had previously declared the princes (and Elizabeth) illegitimate.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 on the crown. In more recent times the theory that Warbeck was Richard has been endorsed by Annette Carson, a freelance writer with a "lifelong interest" in Richard III. She suggested that Richard smuggled the princes abroad to the custody of their aunt, the Duchess of Burgundy, and they were raised there under false identities. Baldwin's theory was that by having removed them from sight to prevent them being a focus for opposition, he was then unable to bring them back to court to scotch rumours of their murder without once again having them become a threat. The political reality