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the legitimacy of his wife or her claim as heiress of Edward IV called into question, prior to the marriage he had repealed the "Titulus Regius" which had previously declared the princes (and Elizabeth) illegitimate.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 Four years after their discovery, the bones were placed in an urn and, on the orders of King Charles II, interred in Westminster Abbey, in the wall of the Henry VII Lady Chapel. A monument designed by Christopher Wren marks the resting-place of the putative princes. The bones were removed and examined in 1933, by the archivist of Westminster Abbey, Lawrence Tanner; a leading anatomist, Professor William Wright; and the president of the Dental Association, George Northcroft. By measuring certain bones and teeth, they concluded the bones belonged to two children around the correct ages for the princes. The bones