The King attempted to gain control of an arsenal at Kingston upon Hull but was thwarted by Sir John Hotham. Parliamentary ships protected Hull from attack by Royalists. Charles removed to York and it became the royalist headquarters.
Editors. "Charles I fails to take control of the arsenal at Kingston upon Hull". The Literary Encyclopedia. First published 01 February 2010
[http://www.litencyc.com/php/stopics.php?rec=true&UID=2225, accessed 02 April 2015.]