Isabella Percy, Countess of Beverley wife of Algernon Percy, 1st Earl of Beverley (1750–1812) Parents Elizabeth Lewis Peter Burrell Children George Percy, 5th Duke of Northumberland Hugh Percy Elizabeth Percy Algernon Percy Lord Charles Greatheed Bertie Percy Charlotte Ashburnham, Countess of Ashburnham Lady Emily Percy Lady Louisa Percy Henry Percy Francis Percy William Henry Percy Josceline Percy Siblings Emilia Burrell Peter Burrell, 1st Baron Gwydyr Elizabeth Hamilton Frances Percy, Duchess of Northumberland Partners Algernon Percy, 1st Earl of Beverley