Editors. "Cardinal Richelieu begins the siege of La Rochelle". The Literary Encyclopedia. First published 01 February 2011
[http://www.litencyc.com/php/stopics.php?rec=true&UID=15965, accessed 18 April 2014.]
Cardinal Richelieu establishes a siege of La Rochelle, the Huguenot stronghold. The English force led by the Duke of Buckingham try to relieve the city, but fail in the attempt.