Henry Percy, 3rd Earl of Northumberland English noble (1421–1461) Parents Eleanor Percy, Countess of Northumberland Henry Percy, 2nd Earl of Northumberland Children Lady Elizabeth Percy Henry Percy, 4th Earl of Northumberland Margaret Percy Lady Eleanor Percy Lady Anne Percy Siblings Thomas Percy, 1st Baron Egremont Ralph Percy William Percy Katherine Percy John Percy Alan Percy Richard Percy George Percy Lady Joan Percy Partners Eleanor de Poynings, Baroness de Poynings
