Editors. "James I imprisons Sir Edward Coke for his share in the Protestation". The Literary Encyclopedia. First published 01 February 2011
[http://www.litencyc.com/php/stopics.php?rec=true&UID=15876, accessed 17 April 2014.]
Sir Edward Coke is imprisoned by James I for his contribution to the parliamentary Protestation that had questioned the King's right to imprison MPs.