Family: Sir Henry Percy / Lady Elizabeth Mortimer (F4342)
Henry Percy, 1st. Earl of Northumberland (1341-1408) 
|
Margaret Neville ( -1365) |
| Sir Henry Percy (1364-1403)
|
Henry Percy, 2nd. Earl of Northumberland (1393-1455)  |
| Henry Percy, 1st. Earl of Northumberland (1341-1408)
|
| Margaret Neville ( -1365) |
| Sir Henry Percy (1364-1403)
|
| Henry Percy, 2nd. Earl of Northumberland (1393-1455) |