"Margaret Percy" . . . . . . . . "The Earl of Northumberland" . "Northumberland" . . . . . "his father" . "Earl of Northumberland" . . "Earl of Northumberland" . "Henry Algernon Percy, 5th Earl of Northumberland" . . . . . "1527-05-19" . . . . "Henry Algernon" . "1477" . . . . . "Henry Percy, 5th Earl of Northumberland" . "1477-01-13" . "Catherine Spencer, wife of 5th Earl" . "Henry Percy, Earl of Northumberland" . . "Henry Percy, 5th Earl of Northumberland" . "Percy's father" . . . . . . . . . . . . .