 Not wanting the legitimacy of his wife or her claim as heir of Edward IV called into question, prior to the marriage he had repealed the "Titulus Regius" which had previously declared the princes (and Elizabeth) illegitimate.Markham suggests the princes were executed under Henry's orders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, knew that this story was false, and so Henry had to have her silenced.Markham suggests this was the motivation behind Henry's decision, in February 1487, to confiscate all of Elizabeth's lands and possessions, and have her confined to Bermondsey Abbey, "where she died six years afterwards".