Alan Percy, 8th Duke of Northumberland British noble (1880-1930) (1880–1930) Parents Edith Campbell Henry Percy, 7th Duke of Northumberland Children Elizabeth Douglas-Hamilton, Duchess of Hamilton and Brandon Lady Diana Percy George Percy, 9th Duke of Northumberland Hugh Percy, 10th Duke of Northumberland Lord Geoffrey Percy Lord Richard Percy Siblings Mary Percy Henry Percy, Earl Percy Eustace Percy, 1st Baron Percy of Newcastle Lady Muriel Percy Lord James Percy Lady Margaret Percy Lord William Percy Lady Edith Percy Ralph Percy Lady Victoria Percy Josceline Percy Louisa Percy Partners Helen Percy, Duchess of Northumberland
