Her husband had a spectacular record, according to his article in thepeerage, "In 1810 he was imprisoned in the Tower for a breach of Parliamentary privilege. In 1819 he was fined £1,000 for a libel on the Government, and imprisoned for three months. He held the office of Member of Parliament (M.P.) for North Wiltshire between 1837 and 1841."
From Wikimedia; posted as a replacement image on 29 June 2012.