Brigadier Arthur Valerian Wellesley , 8th Duke of Wellington ( 2 July 1915 -- 31 December 2014 ) , styled Marquess of Douro between 1943 and 1972 , was a senior British peer and a retired brigadier in the British Army .
Brigadier Arthur Valerian Wellesley , 8th Duke of Wellington ( 2 July 1915 -- 31 December 2014 ) , styled Marquess of Douro between 1943 and 1972 , was a senior British peer and a brigadier in the British Army .