Major Fiennes Cornwallis, born Fiennes Wykeham-Martin (1 November 1831 – 24 April 1867), was a British Army officer and related to the Cornwallis family.
Born[1] 1 November 1831 at Leeds Castle, Kent, England, he was the son of Charles Wykeham Martin M.P.
[2] and Lady Jemima Isabella (née Mann)[3] and was educated at Eton College.
Cornwallis served in the Crimean War with the 4th Light Dragoons[6] and took part in the Charge of the Light Brigade,[7] becoming aide-de-camp to Lord George Paget in the Crimea.
[8] Cornwallis retired from the Army on 5 May 1863 with the rank of Major and died few years later on 24 April 1867 in a hunting accident.