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 hævder, at prinserne blev henrettet på Henriks ordre mellem den 16. juni og 16 juli 1483, da han påstår at der efter denne dato blev udsendt bekendtgørelser om, at Richard havde myrdet prinserne, og at prinsernes mor Elizabeth Woodville vidste at denne historien falsk, og derfor fik Henrik gjort hende tavs.