Editors. "English force under the Duke of Suffolk ravages Normandy and Picardy". The Literary Encyclopedia. First published 01 November 2010
[http://www.litencyc.com/php/stopics.php?rec=true&UID=14296, accessed 20 May 2013.]
An English army, under the leadership of the Duke of Suffolk, ravages Normandy and Picardy, in a campaign that continues until October.