Arthur Vansittart English politician, December 28, 1775 - May 31, 1829 (1775–1829) Parents Anne Hanger Arthur Vansittart Children Caroline Mostyn, Lady Vaux of Harrowden Martha Louisa Vansittart William Vansittart Charlotte Eleanor Vansittart George Nicholas Vansittart Sophia Vansittart Nicholas Vansittart Henry Vansittart Charles Vansittart Arthur Vansittart Robert Vansittart Siblings Robert Vansittart unknown daughter Vansittart William Vansittart Partners Caroline Eden