On 9 September 1944, Hartington was shot dead at the age of 26 by a sniper whilst leading a company trying to capture the town of Heppen in Belgium from troops of the German Waffen-SS.'HARTINGTON, Marquess of', Who Was Who, A & C Black, an imprint of Bloomsbury Publishing plc, 1920–2015; online edn, Oxford University Press, 2014 ; online edn, April 2014 accessed 26 Aug 2015
