Editors. "Marriage proposed between Henry Prince of Wales and the Infanta". The Literary Encyclopedia. First published 01 February 2011
[http://www.litencyc.com/php/stopics.php?rec=true&UID=15698, accessed 17 April 2014.]
Sir John Digby, English ambassador in Madrid, attempts to negotiate a marriage between the Infanta, Anne of Austria, and Henry, Prince of Wales. Unfortunately for his scheme, he finds she is already contracted to Louis XIII of France.