Editors. "Arabella Stuart is imprisoned for marrying another claimant to the throne". The Literary Encyclopedia. First published 01 February 2011
[http://www.litencyc.com/php/stopics.php?rec=true&UID=15677, accessed 22 May 2013.]
Arabella Stuart, cousin to James I and VI, is imprisoned for marrying William Seymour, Earl of Hertford, claimant of the Suffolk line to the English succession, since this marriage would give her a dual claim to the throne.