Edward, Earl of Warwick, is executed for treason. Unlike Perkin
Warbeck, he was not an impersonator, but a genuine claimant to the
throne, being a Plantagenet and son of George Duke of Clarence.
However, the threat recently posed by Perkin Warbeck demonstrated
to Henry VII that any potential claimant was a constant risk to his
security.
Citation:
Editors. "Edward, Earl of Warwick, is executed for treason".
The Literary Encyclopedia. First published 01 November 2010
[http://www.litencyc.com/php/stopics.php?rec=true&UID=14017, accessed 25 May 2013.]