Percy [pierce-eye]
.When Malcolm III. of Scotland invaded England, and reduced the castle of Alnwick, Robert de Mowbray brought to him the keys of the castle suspended on his lance; and, handing them from the wall, thrust his lance into the king’s eye; from which circumstance, the tradition says, he received the name of “Pierce-eye,” which has ever since been borne by the Dukes of Northumberland.