Editors. "James I finally breaks off the Spanish marriage treaty". The Literary Encyclopedia. First published 01 February 2011
[http://www.litencyc.com/php/stopics.php?rec=true&UID=15911, accessed 18 April 2014.]
At the urging of his son Prince Charles, James I of England finally breaks off the Spanish marriage treaty. This causes a foreign relations breach with the country, and leads, the following March, to outright war.