James I creates his favourite, George Villiers, Earl of Buckingham (elevated to a dukedom May 1623).
Citation:
Editors. "George Villiers, Duke of Buckingham in power".
The Literary Encyclopedia. First published 01 January 2010
[http://www.litencyc.com/php/stopics.php?rec=true&UID=2118, accessed 22 May 2013.]