Helen Percy, Duchess of Northumberland Duchess of Northumberland (1886–1965) (1886–1965) Parents Isabel Craven Charles Gordon-Lennox, 7th Duke of Richmond Children George Percy, 9th Duke of Northumberland Lord Richard Percy Lord Geoffrey Percy Lady Diana Percy Hugh Percy, 10th Duke of Northumberland Elizabeth Douglas-Hamilton, Duchess of Hamilton and Brandon Siblings Muriel Gordon-Lennox Lord Esmé Gordon-Lennox Lady Evelyn Gordon-Lennox Lord Bernard Gordon-Lennox Lady Violet Gordon-Lennox Charles Gordon-Lennox, 8th Duke of Richmond Partners Alan Percy, 8th Duke of Northumberland
