"1455-05-22" . . . "Earl of Northumberland" . "1393" . "Earl of Northumberland" . "earl of Northumberland" . "1393-02-03" . . . . . "Earl of Northumberland's" . . . "Percies" . . . . . . . . "Henry
Percy" . . "Sir Richard Percy" . "Henry Percy, 2nd Earl of Northumberland" . . . . . . "Henry Percy" . . "thy father" . . . . "Henry Percy, 2nd Earl of Northumberland" . . . . "second Earl of Northumberland" . "Henry Percy, Earl of Northumberland" . . . . . . . . . . . "Northumberland" . . "son" . . . . "2nd Earl of Northumberland" . "Henry Percy 2nd Earl of Northumberland" . . . .