About Frederick Stewart, 4th Marquess of Londonderry
Frederick William Robert Stewart, 4th Marquess of Londonderry (1805–1872), styled Viscount Castlereagh from 1822 to 1854, was a British nobleman and Tory politician.
He was briefly Vice-Chamberlain of the Household under Sir Robert Peel between December 1834 and April 1835.