As a result of the plague raging in Westminster, the fifth session
of Charles II's Cavalier Parliament is held at a geographical
remove in Oxford.
Citation:
Editors. "Parliament is held at Oxford due to plague in Westminster".
The Literary Encyclopedia. First published 01 April 2011
[http://www.litencyc.com/php/stopics.php?rec=true&UID=16512, accessed 19 May 2013.]