Family: Henry Percy, 1st. Earl of Northumberland / Margaret Neville (F4343)
Henry Percy, 3rd. Baron Percy (1321-1368) |
Mary Plantagenet (1321-1362) 
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| Henry Percy, 1st. Earl of Northumberland (1341-1408)
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| Margaret Neville ( -1365) |
Sir Henry Percy (1364-1403)  |