Spencer Compton
His paternal grandparents were Spencer Compton, 2nd Marquess of Northampton and the former Margaret Douglas-Maclean-Clephane. His maternal grandparents were Adm. The Hon. Sir George Elliot (second son of Gilbert Elliot-Murray-Kynynmound, 1st Earl of Minto) and Eliza Cecilia Ness (youngest daughter of James Ness of Osgodby).