Henry Percy, Baron Percy Peerage person ID=663634 (b. 1596) Parents Henry Percy, 9th Earl of Northumberland Dorothy Percy, Countess of Northumberland Children Siblings Lucy Hay, Countess of Carlisle Algernon Percy, 10th Earl of Northumberland Henry Percy, Baron Percy Dorothy Sidney, Countess of Leicester Henry Percy, Baron Percy of Alnwick Dorothy Perrot Penelope Perrot Elizabeth Perrot