Henry Percy English army officer and politician (1785–1825) Parents Isabella Percy, Countess of Beverley Algernon Percy, 1st Earl of Beverley Children Henry Marion Durand Siblings George Percy, 5th Duke of Northumberland Josceline Percy Charlotte Ashburnham, Countess of Ashburnham William Henry Percy Hugh Percy Francis Percy Lady Emily Percy Lady Louisa Percy Lord Charles Greatheed Bertie Percy Elizabeth Percy Algernon Percy Partners Marion Durand