Hugh Percy, 10th Duke of Northumberland British peer (1914-1988) (1914–1988) Parents Helen Percy, Duchess of Northumberland Alan Percy, 8th Duke of Northumberland Children Lady Caroline Percy Lord James Percy Ralph Percy, 12th Duke of Northumberland Lady Louise Percy Lady Julia Percy Henry Percy, 11th Duke of Northumberland Lady Victoria Percy Siblings George Percy, 9th Duke of Northumberland Lady Diana Percy Elizabeth Douglas-Hamilton, Duchess of Hamilton and Brandon Lord Richard Percy Lord Geoffrey Percy Partners Elizabeth Percy, Duchess of Northumberland
