John Dawnay, 4th Viscount Downe Member of the Parliament of Great Britain (1728-1780) (1728–1780) Parents Charlotte Louisa Pleydell John Dawnay Children John Dawnay, 5th Viscount Downe Marmaduke Langley William Dawnay, 6th Viscount Downe Siblings Henry Dawnay, 3rd Viscount Downe Partners Laura Burton