An armistice between Royalists and Parliamentarians in the English Civil War which had been agreed to allow peace negotiations at Uxbridge breaks down, and warfare begins again.
Editors. "Uxbridge Treaty negotiations begin and then fail". The Literary Encyclopedia. First published 01 March 2011
[http://www.litencyc.com/php/stopics.php?rec=true&UID=2285, accessed 25 May 2013.]